+++ /dev/null
-Brian Behlendorf <behlendorf1@llnl.gov>,
-Herb Wartens <wartens2@llnl.gov>,
-Jim Garlick <garlick@llnl.gov>,
-Ricardo M. Correia <Ricardo.M.Correia@sun.com>
+++ /dev/null
-2008-11-19 Brian Behlendorf <behlendorf1@llnl.gov>
-
- * : Tag zfs-0.4.0
-
- * : ZFS project migrated from Subversion which leveraged a
- quilt based patch stack to Git and a TopGit managed patch
- stack. The new method treats all patches as Git branches
- which can be more easily shared for distributed development.
- Consult the top level GIT file for detailed information on
- how to properly develop for this package using Git+TopGit.
-
-2008-11-12 Brian Behlendorf <behlendorf1@llnl.gov>
-
- * : Tag zfs-0.3.4
-
- * zfs-07-create-dev-zfs.patch:
- Ricardo M. Correia <Ricardo.M.Correia@sun.com>
- - Make libzfs create /dev/zfs if it doesn't exist.
-
- * zfs-05-check-zvol-size.patch:
- Ricardo M. Correia <Ricardo.M.Correia@sun.com>
- - Properly check zvol size under Linux.
-
- * zfs-04-no-openat-fdopendir.patch:
- Ricardo M. Correia <Ricardo.M.Correia@sun.com>
- - Do not use openat() and fdopendir() since they are not available
- on older systems.
-
- * zfs-03-fix-bio-sync.patch:
- Ricardo M. Correia <Ricardo.M.Correia@sun.com>
- - Fix memory corruption in RHEL4 due to synchronous IO becoming
- asynchronous.
-
-2008-11-06 Brian Behlendorf <behlendorf1@llnl.gov>
-
- * zfs-02-zpios-fix-stuck-thread-memleak.patch:
- Ricardo M. Correia <Ricardo.M.Correia@sun.com>
- - Fix stuck threads and memory leaks when errors occur while writing.
-
- * zfs-01-zpios-arg-corruption.patch:
- Ricardo M. Correia <Ricardo.M.Correia@sun.com>
- - Fix zpios cmd line argument corruption problem.
-
- * zfs-00-minor-fixes.patch:
- Ricardo M. Correia <Ricardo.M.Correia@sun.com>
- - Minor build system improvements
- - Minor script improvements
- - Create a full copy and not a link tree with quilt
- - KPIOS_MAJOR changed from 231 to 232
- - BIO_RW_BARRIER flag removed from IO request
-
-2008-06-30 Brian Behlendorf <behlendorf1@llnl.gov>
-
- * : Tag zfs-0.3.3
-
- * : Minor script updates and tweaks to be compatible with
- the latest version of the SPL.
-
-2008-06-13 Brian Behlendorf <behlendorf1@llnl.gov>
-
- * vdev_disk.diff: Replace vdev_disk implementation which was
- based on the kmalloc'ed logical address space with a version
- which works with vmalloc'ed memory in the virtual address space.
- This was done to support the new SPL slab implementation which
- is based on virtual addresses to avoid the need for contigeously
- allocated memory.
-
-2008-06-05 Brian Behlendorf <behlendorf1@llnl.gov>
-
- * arc-vm-integration.diff: Reduce maximum default arc memory
- usage to 1/4 of total system memory. Because all the bulk data
- is still allocated on the slab memory fragmentation is a serious
- concern. To address this in the short term we simply need to
- leave lots of free memory.
-
- * fix-stack.diff: First step towards reducing stack usage so
- we can run the full ZFS stack using a stock kernel.
-
-2008-06-04 Brian Behlendorf <behlendorf1@llnl.gov>
-
- * : Tag zfs-0.3.2
-
- * : Extensive improvements to the build system to detect kernel
- API changes so we can flexibly build with a wider range of kernel
- versions. The code has now been testing with the 2.6.18-32chaos
- and 2.6.25.3-18.fc9 kernels, however we should also be compatible
- with other kernels in the range of 2.6.18-2.6.25. The only
- remaining issue preventing us from running with a stock
- kernel is ZFS stack usage.
-
-2008-05-21 Brian Behlendorf <behlendorf1@llnl.gov>
-
- * : Tag zfs-0.3.1
-
- * : License headers including URCL added for release.
-
-2008-05-21 Brian Behlendorf <behlendorf1@llnl.gov>
-
- * : Tag zfs-0.3.0
-
- * configure.ac: Improved autotools support and configurable debug.
-
-2008-05-15 Brian Behlendorf <behlendorf1@llnl.gov>
-
- * : Updating original ZFS sources to build 89 which
- includes the new write throttling changes plus support
- for using ZFS as your root device. Neither of which
- will work exactly right without some more work but this
- gets us much closers to the latest source.
-
-
-2008-02-28 Brian Behlendorf <behlendorf1@llnl.gov>
-
- * : First attempt based on SPL module and zfs-lustre sources
+++ /dev/null
-=========================== WHY USE GIT+TOPGIT? ==========================
-
-Three major concerns were on our mind when setting up this project.
-
- o First we needed to structure the project in such a way that it would be
- easy to rebase all of our changes on the latest official ZFS release
- from Sun. We absolutely need to be able to benefit from the upstream
- improvements and not get locked in to an old version of the code base.
-
- o Secondly, we wanted to be able to easily manage our changes in terms
- of a patch stack or graph. This allows us to easily isolate specific
- changes and push them upstream for inclusion. It also allows us to
- easily update or drop specific changes based on what occurs upstream.
-
- o Thirdly we needed our DVCS to be integrated with the management of this
- patch stack or graph. We have tried other methods in the past such as
- SVN+Quilt but have found managing the patch stack becomes cumbersome.
- By using Git+TopGit to more tightly integrate our patches in to the repo
- we expect several benefits. One of the most important will be the
- ability to easily work on the patch's with a distributed development
- team, additionally the repo can track patch history, and we can utilize
- Git to merge patches and resolve conflicts.
-
-TopGit is designed to specifically address these concerns by providing
-tools to simplify the handling of large numbers of interdependent topic
-branches. When using a TopGit aware repo every topic branch represents
-a 'patch' and that branch references its dependent branches. The union
-of all these branches is your final source base.
-
-========================= SETTING UP GIT+TOPGIT ==========================
-
-First off you need to install a Git package on your system. For my
-purposes I have been working on a RHEL5 system with git version 1.5.4.5
-installed and it has been working well. You will also need to go get
-the latest version of TopGit which likely is not packaged nicely so you
-will need to build it from source. You can use Git to clone TopGit
-from the official site here and your all set:
-
- > git clone git://repo.or.cz/w/topgit.git
- > make
- > make install # Default installs to $(HOME)
-
-========================== TOPGIT AND ZFS ================================
-
-One you have Git and TopGit installed you will want to clone a copy of
-the Linux ZFS repo. While this project does not yet have a public home
-it hopefully will some day. In the meanwhile if you have VPN access to
-LLNL you can clone the latest official repo here. Cloning a TopGit
-controlled repo is very similar to cloning a normal Git repo, but you
-need to remember to use 'tg remote' to populate all topic branches.
-
- > git clone http://eris.llnl.gov/git/zfs.git zfs
- > cd zfs
- > tg remote --populate origin
-
-Now that you have the Linux ZFS repo the first thing you will probably
-want to do is have a look at all the topic branches. TopGit provides
-a summary command which shows all the branches and a brief summary for
-each branch obtained from the .topmsg files.
-
- > tg summary
- 0 feature-branch [PATCH] feature-branch
- feature-commit-cb [PATCH] feature commit cb
- feature-zap-cursor-to-key [PATCH] feature zap cursor to key
- ...
-
-By convention all TopGit branches are usually prefixed with 't/', however
-I have chosen not to do this for simplicity. A different convention I have
-adopted is to tag the top most TopGit branch as 'top' for easy reference.
-This provides a consistent label to be used when you need to reference the
-branch which contains the union of all topic branches.
-
-One thing you may also notice about the 'tg summary' command is it does
-not show the branches in dependent order. This is done because TopGit allows
-each branch to express multiple dependencies as a DAC. Initially this seemed
-like an added complication which I planned to avoid by just implementing a
-stack using the graph. However, this ended up being problematic because
-with a stack when a change was made to a branch near the base, it was a
-very expensive operation to merge the change up to the top of the stack.
-By defining the dependencies as a graph it is possible to keep the depth
-much shallower thus minimizing the merging. It has also proved insightful
-as to each patches actual dependencies.
-
-To see the dependencies you will need to use the --graphviz option and pipe
-the result to dot for display. The following command works fairly well for
-me. Longer term it would be nice to update this option to use a preferred
-config options stored in the repo.
-
- > tg summary --graphviz | dot -Txlib -Nfontsize=8
-
-========================= UPDATING A TOPIC BRANCH ========================
-
-Updating a topic branch in TopGit is a pretty straight forward but there
-are a few rules you need to be aware of. The basic process involves
-checking out the relevant topic branch where the changes need to be made,
-making the changes, committing the changes to the branch and then merging
-those changes in to dependent branches. TopGit provides some tools to make
-this pretty easy, although it may be a little sluggish depending on how many
-dependent branches are impacted by the change. Here is an example:
-
- > git checkout modify-topic-branch # Checkout the proper branch
- > ...update branch... # Update the branch
- > git commit -a # Commit your changes
- > git checkout top # Checkout the top branch
- > tg update # Recursively merge in new branch
-
-Assuming you change does not introduce any conflicts your done. All branches
-were dependent on your change will have had the changed merged in. If your
-change introduced a conflict you will need to resolve the conflict and then
-continue on with the update.
-
-========================== ADDING A TOPIC BRANCH =========================
-
-Adding a topic branch in TopGit can be pretty straight forward. If your
-adding a non-conflicting patch in parallel with other patches of the same
-type, then things are pretty easy and TopGit does all the work.
-
- > git co existing-topic-branch # Checkout the branch to add after
- > tg create new-topic-branch # Create a new topic branch
- > ...update .topmsg... # Update the branch message
- > ...create patch... # Update with your changes
- > git commit -a # Commit your changes
- > git co dependent-topic-branch # Checkout dependent branch
- > tg depend add new-topic-branch # Update dependencies
- > git checkout top # Checkout the top branch
- > tg update # Recursively merge in new branch
-
-If you need to add your patch in series with another change things are
-a little more complicated. In this case TopGit does not yet support removing
-dependencies so you will need to do it by hand, as follows.
-
- > git co existing-topic-branch # Checkout the branch to add after
- > tg create new-topic-branch # Create a new topic branch
- > ...update .topmsg... # Update the branch message
- > ...create patch... # Update with your changes
- > git commit -a # Commit your changes
- > git co dependent-topic-branch # Checkout dependent branch
- > ...update .topdeps... # Manually update dependencies
- > git commit -a # Commit your changes
- > tg update # TopGit update
- > git checkout top # Checkout the top branch
- > tg update # Recursively merge in new branch
-
-Once your done, I find it is a good idea view the repo using the
-'tg summary --graphviz' command and verify the updated dependency graph.
-
-========================= REMOVING A TOPIC BRANCH ========================
-
-Removing a topic branch in TopGit is also currently not very easy. To remove
-a dependent branch the basic process is to commit a patch which reverts all
-changes on the branch. Then that reversion must be merged in to all dependent
-branches, the dependencies manually updated and finally the branch removed.
-If the branch is not empty you will not be able to remove it.
-
- > git co delete-topic-branch # Checkout the branch to delete
- > tg patch | patch -R -p1 # Revert all branch changes
- > git commit -a # Commit your changes
- > git checkout top # Checkout the top branch
- > tg update # Recursively merge revert
- > git co dependent-topic-branch # Checkout dependent branch
- > ...update .topdeps... # Manually update dependencies
- > git commit -a # Commit your changes
- > tg delete delete-topic-branch # Delete empty topic branch
-
-Once your done, I find it is a good idea view the repo using the
-'tg summary --graphviz' command and verify the updated dependency graph.
-
-============================ TOPGIT TODO =================================
-
-TopGit is still a young package which seems to be under active development
-by its author. It provides the minimum set of commands needed but there
-are clearly areas which simply have not yet been implemented. My short
-list of features includes:
-
- o 'tg summary --deps', option to display a text version of the topic
- branch dependency DAC.
-
- o 'tg depend list', list all topic branch dependencies.
-
- o 'tg depend delete', cleanly remove a topic branch dependency.
-
- o 'tg create', cleanly insert a topic branch in the middle
- of the graph and properly take care updating all dependencies.
-
- o 'tg delete', cleanly delete a topic branch in the middle
- of the graph and properly take care updating all dependencies.
+++ /dev/null
-============================ ZFS KERNEL BUILD ============================
-
-1) Build the SPL (Solaris Porting Layer) module which is designed to
- provide many Solaris APIs in the Linux kernel which are needed
- by ZFS. To build the SPL:
-
- tar -xzf spl-x.y.z.tgz
- cd spl-x.y.z
- ./configure --with-linux=<kernel src>
- make
- make check <as root>
-
-2) Build ZFS, this port is based on build 89 of ZFS from OpenSolaris.
- You will need to have both the kernel and SPL source available.
- To build ZFS for use as a Linux kernel module (default):
-
- tar -xzf zfs-x.y.z.tgz
- cd zfs-x.y.z
- ./configure --with-linux=<kernel src> \
- --with-spl=<spl src>
- make
- make check <as root>
-
-========================= ZFS USER LIBRARY BUILD =========================
-
-1) Build ZFS, this port is based on build 89 of ZFS from OpenSolaris.
- To build ZFS as a userspace library:
-
- tar -xzf zfs-x.y.z.tgz
- cd zfs-x.y.z
- ./configure --zfsconfig=user
- make
- make check <as root>
-
-============================ ZFS LUSTRE BUILD ============================
-
-1) Build the SPL (Solaris Porting Layer) module which is designed to
- provide many Solaris APIs in the Linux kernel which are needed
- by ZFS. To build the SPL:
-
- tar -xzf spl-x.y.z.tgz
- cd spl-x.y.z
- ./configure --with-linux=<kernel src>
- make
- make check <as root>
-
-2) Build ZFS, this port is based on build 89 of ZFS from OpenSolaris.
- To build ZFS as a userspace library for use by a Lustre filesystem:
-
- tar -xzf zfs-x.y.z.tgz
- cd zfs-x.y.z
- ./configure --zfsconfig=lustre \
- --with-linux=<kernel src> \
- --with-spl=<spl src>
- make
- make check <as root>
-
-3) Provided is an in-kernel test application called kpios which can be
- used to simulate a Lustre IO load. It may be used as a stress test
- or as a performance to measure your configuration. To simplify testing
- there are scripts provided in the scripts/ directory. A single test
- can be run as follows:
-
- WARNING: You MUST update DEVICES in the create-zpool.sh script
- to reference the devices you wish to use.
-
- cd scripts
- ./load-zfs.sh # Load the ZFS/SPL module stack
- ./create-zpool.sh # Modify DEVICES to list your zpool devices
- ./zpios.sh # Modify for your particular kpios test
- ./unload-zfs.sh # Unload the ZFS/SPL module stack
-
-Enjoy,
-Brian Behlendorf <behlendorf1@llnl.gov>
+++ /dev/null
-#!/bin/bash
-
-prog=check.sh
-
-die() {
- echo "${prog}: $1" >&2
- exit 1
-}
-
-if [ $(id -u) != 0 ]; then
- die "Must run as root"
-fi
-
-./load-zfs.sh || die ""
-./unload-zfs.sh || die ""
-
-exit 0
+++ /dev/null
-#!/bin/bash
-
-prog=create-zpool.sh
-. ../.script-config
-
-# Single disk ilc dev nodes
-DEVICES="/dev/sda"
-
-# All disks in a Thumper config
-#DEVICES="/dev/sda /dev/sdb /dev/sdc /dev/sdd /dev/sde /dev/sdf \
-# /dev/sdg /dev/sdh /dev/sdi /dev/sdj /dev/sdk /dev/sdl \
-# /dev/sdm /dev/sdn /dev/sdo /dev/sdp /dev/sdq /dev/sdr \
-# /dev/sds /dev/sdt /dev/sdu /dev/sdv /dev/sdw /dev/sdx \
-# /dev/sdy /dev/sdz /dev/sdaa /dev/sdab /dev/sdac /dev/sdad \
-# /dev/sdae /dev/sdaf /dev/sdag /dev/sdah /dev/sdai /dev/sdaj \
-# /dev/sdak /dev/sdal /dev/sdam /dev/sdan /dev/sdao /dev/sdap \
-# /dev/sdaq /dev/sdar /dev/sdas /dev/sdat /dev/sdau /dev/sdav"
-
-# Sun style disk in Thumper config
-#DEVICES="/dev/sda /dev/sdb /dev/sdc \
-# /dev/sdi /dev/sdj /dev/sdk \
-# /dev/sdr /dev/sds /dev/sdt \
-# /dev/sdz /dev/sdaa /dev/sdab"
-
-# Promise JBOD config (ilc23)
-#DEVICES="/dev/sdb /dev/sdc /dev/sdd \
-# /dev/sde /dev/sdf /dev/sdg \
-# /dev/sdh /dev/sdi /dev/sdj \
-# /dev/sdk /dev/sdl /dev/sdm"
-
-echo
-echo "zpool create lustre <devices>"
-${CMDDIR}/zpool/zpool create -F lustre ${DEVICES}
-
-echo
-echo "zpool list"
-${CMDDIR}/zpool/zpool list
-
-echo
-echo "zpool status lustre"
-${CMDDIR}/zpool/zpool status lustre
-
+++ /dev/null
-#!/bin/bash
-
-prog=load-zfs.sh
-. ../.script-config
-
-spl_options=$1
-zpool_options=$2
-
-spl_module=${SPLBUILD}/modules/spl/spl.ko
-zlib_module=/lib/modules/${KERNELSRCVER}/kernel/lib/zlib_deflate/zlib_deflate.ko
-zavl_module=${ZFSBUILD}/lib/libavl/zavl.ko
-znvpair_module=${ZFSBUILD}/lib/libnvpair/znvpair.ko
-zport_module=${ZFSBUILD}/lib/libport/zport.ko
-zcommon_module=${ZFSBUILD}/lib/libzcommon/zcommon.ko
-zpool_module=${ZFSBUILD}/lib/libzpool/zpool.ko
-zctl_module=${ZFSBUILD}/lib/libdmu-ctl/zctl.ko
-zpios_module=${ZFSBUILD}/lib/libzpios/zpios.ko
-
-die() {
- echo "${prog}: $1" >&2
- exit 1
-}
-
-load_module() {
- echo "Loading $1"
- /sbin/insmod $* || die "Failed to load $1"
-}
-
-if [ $(id -u) != 0 ]; then
- die "Must run as root"
-fi
-
-if /sbin/lsmod | egrep -q "^spl|^zavl|^znvpair|^zport|^zcommon|^zlib_deflate|^zpool"; then
- die "Must start with modules unloaded"
-fi
-
-if [ ! -f ${zavl_module} ] ||
- [ ! -f ${znvpair_module} ] ||
- [ ! -f ${zport_module} ] ||
- [ ! -f ${zcommon_module} ] ||
- [ ! -f ${zpool_module} ]; then
- die "Source tree must be built, run 'make'"
-fi
-
-load_module ${spl_module} ${spl_options}
-load_module ${zlib_module}
-load_module ${zavl_module}
-load_module ${znvpair_module}
-load_module ${zport_module}
-load_module ${zcommon_module}
-load_module ${zpool_module} ${zpool_options}
-load_module ${zctl_module}
-load_module ${zpios_module}
-
-sleep 1
-echo "Successfully loaded ZFS module stack"
-
-exit 0
+++ /dev/null
-#!/bin/bash
-# profile-kpios-disk.sh
-#
-# /proc/diskinfo <after skipping major/minor>
-# Field 1 -- device name
-# Field 2 -- # of reads issued
-# Field 3 -- # of reads merged
-# Field 4 -- # of sectors read
-# Field 5 -- # of milliseconds spent reading
-# Field 6 -- # of writes completed
-# Field 7 -- # of writes merged
-# Field 8 -- # of sectors written
-# Field 9 -- # of milliseconds spent writing
-# Field 10 -- # of I/Os currently in progress
-# Field 11 -- # of milliseconds spent doing I/Os
-# Field 12 -- weighted # of milliseconds spent doing I/Os
-
-RUN_PIDS=${0}
-RUN_LOG_DIR=${1}
-RUN_ID=${2}
-
-create_table() {
- local FIELD=$1
- local ROW_M=()
- local ROW_N=()
- local HEADER=1
- local STEP=1
-
- for DISK_FILE in `ls -r --sort=time --time=ctime ${RUN_LOG_DIR}/${RUN_ID}/disk-[0-9]*`; do
- ROW_M=( ${ROW_N[@]} )
- ROW_N=( `cat ${DISK_FILE} | grep sd | cut -c11- | cut -f${FIELD} -d' ' | tr "\n" "\t"` )
-
- if [ $HEADER -eq 1 ]; then
- echo -n "step, "
- cat ${DISK_FILE} | grep sd | cut -c11- | cut -f1 -d' ' | tr "\n" ", "
- echo "total"
- HEADER=0
- fi
-
- if [ ${#ROW_M[@]} -eq 0 ]; then
- continue
- fi
-
- if [ ${#ROW_M[@]} -ne ${#ROW_N[@]} ]; then
- echo "Badly formatted profile data in ${DISK_FILE}"
- break
- fi
-
- TOTAL=0
- echo -n "${STEP}, "
- for (( i=0; i<${#ROW_N[@]}; i++ )); do
- DELTA=`echo "${ROW_N[${i}]}-${ROW_M[${i}]}" | bc`
- let TOTAL=${TOTAL}+${DELTA}
- echo -n "${DELTA}, "
- done
- echo "${TOTAL}, "
-
- let STEP=${STEP}+1
- done
-}
-
-create_table_mbs() {
- local FIELD=$1
- local TIME=$2
- local ROW_M=()
- local ROW_N=()
- local HEADER=1
- local STEP=1
-
- for DISK_FILE in `ls -r --sort=time --time=ctime ${RUN_LOG_DIR}/${RUN_ID}/disk-[0-9]*`; do
- ROW_M=( ${ROW_N[@]} )
- ROW_N=( `cat ${DISK_FILE} | grep sd | cut -c11- | cut -f${FIELD} -d' ' | tr "\n" "\t"` )
-
- if [ $HEADER -eq 1 ]; then
- echo -n "step, "
- cat ${DISK_FILE} | grep sd | cut -c11- | cut -f1 -d' ' | tr "\n" ", "
- echo "total"
- HEADER=0
- fi
-
- if [ ${#ROW_M[@]} -eq 0 ]; then
- continue
- fi
-
- if [ ${#ROW_M[@]} -ne ${#ROW_N[@]} ]; then
- echo "Badly formatted profile data in ${DISK_FILE}"
- break
- fi
-
- TOTAL=0
- echo -n "${STEP}, "
- for (( i=0; i<${#ROW_N[@]}; i++ )); do
- DELTA=`echo "${ROW_N[${i}]}-${ROW_M[${i}]}" | bc`
- MBS=`echo "scale=2; ((${DELTA}*512)/${TIME})/(1024*1024)" | bc`
- TOTAL=`echo "scale=2; ${TOTAL}+${MBS}" | bc`
- echo -n "${MBS}, "
- done
- echo "${TOTAL}, "
-
- let STEP=${STEP}+1
- done
-}
-
-echo
-echo "Reads issued per device"
-create_table 2
-echo
-echo "Reads merged per device"
-create_table 3
-echo
-echo "Sectors read per device"
-create_table 4
-echo "MB/s per device"
-create_table_mbs 4 3
-
-echo
-echo "Writes issued per device"
-create_table 6
-echo
-echo "Writes merged per device"
-create_table 7
-echo
-echo "Sectors written per device"
-create_table 8
-echo "MB/s per device"
-create_table_mbs 8 3
-
-exit 0
+++ /dev/null
-#!/bin/bash
-# profile-kpios-pids.sh
-
-RUN_PIDS=${0}
-RUN_LOG_DIR=${1}
-RUN_ID=${2}
-
-ROW_M=()
-ROW_N=()
-ROW_N_SCHED=()
-ROW_N_WAIT=()
-
-HEADER=1
-STEP=1
-
-for PID_FILE in `ls -r --sort=time --time=ctime ${RUN_LOG_DIR}/${RUN_ID}/pids-[0-9]*`; do
- ROW_M=( ${ROW_N[@]} )
- ROW_N=( 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 )
- ROW_N_SCHED=( `cat ${PID_FILE} | cut -f15 -d' ' | tr "\n" "\t"` )
- ROW_N_WAIT=( `cat ${PID_FILE} | cut -f17 -d' ' | tr "\n" "\t"` )
- ROW_N_NAMES=( `cat ${PID_FILE} | cut -f2 -d' ' | cut -f2 -d'(' |
- cut -f1 -d')' | cut -f1 -d'/' | tr "\n" "\t"` )
-
- for (( i=0; i<${#ROW_N_SCHED[@]}; i++ )); do
- SUM=`echo "${ROW_N_WAIT[${i}]}+${ROW_N_SCHED[${i}]}" | bc`
-
- case ${ROW_N_NAMES[${i}]} in
- zio_taskq) IDX=0;;
- zio_req_nul) IDX=1;;
- zio_irq_nul) IDX=2;;
- zio_req_rd) IDX=3;;
- zio_irq_rd) IDX=4;;
- zio_req_wr) IDX=5;;
- zio_irq_wr) IDX=6;;
- zio_req_fr) IDX=7;;
- zio_irq_fr) IDX=8;;
- zio_req_cm) IDX=9;;
- zio_irq_cm) IDX=10;;
- zio_req_ctl) IDX=11;;
- zio_irq_ctl) IDX=12;;
- txg_quiesce) IDX=13;;
- txg_sync) IDX=14;;
- txg_timelimit) IDX=15;;
- arc_reclaim) IDX=16;;
- l2arc_feed) IDX=17;;
- kpios_io) IDX=18;;
- *) continue;;
- esac
-
- let ROW_N[${IDX}]=${ROW_N[${IDX}]}+${SUM}
- done
-
- if [ $HEADER -eq 1 ]; then
- echo "step, zio_taskq, zio_req_nul, zio_irq_nul, " \
- "zio_req_rd, zio_irq_rd, zio_req_wr, zio_irq_wr, " \
- "zio_req_fr, zio_irq_fr, zio_req_cm, zio_irq_cm, " \
- "zio_req_ctl, zio_irq_ctl, txg_quiesce, txg_sync, " \
- "txg_timelimit, arc_reclaim, l2arc_feed, kpios_io, " \
- "idle"
- HEADER=0
- fi
-
- if [ ${#ROW_M[@]} -eq 0 ]; then
- continue
- fi
-
- if [ ${#ROW_M[@]} -ne ${#ROW_N[@]} ]; then
- echo "Badly formatted profile data in ${PID_FILE}"
- break
- fi
-
- # Original values are in jiffies and we expect HZ to be 1000
- # on most 2.6 systems thus we divide by 10 to get a percentage.
- IDLE=1000
- echo -n "${STEP}, "
- for (( i=0; i<${#ROW_N[@]}; i++ )); do
- DELTA=`echo "${ROW_N[${i}]}-${ROW_M[${i}]}" | bc`
- DELTA_PERCENT=`echo "scale=1; ${DELTA}/10" | bc`
- let IDLE=${IDLE}-${DELTA}
- echo -n "${DELTA_PERCENT}, "
- done
- ILDE_PERCENT=`echo "scale=1; ${IDLE}/10" | bc`
- echo "${ILDE_PERCENT}"
-
- let STEP=${STEP}+1
-done
-
-exit
-
-echo
-echo "Percent of total system time per pid"
-for PID_FILE in `ls -r --sort=time --time=ctime ${RUN_LOG_DIR}/${RUN_ID}/pids-[0-9]*`; do
- ROW_M=( ${ROW_N[@]} )
- ROW_N_SCHED=( `cat ${PID_FILE} | cut -f15 -d' ' | tr "\n" "\t"` )
- ROW_N_WAIT=( `cat ${PID_FILE} | cut -f17 -d' ' | tr "\n" "\t"` )
-
- for (( i=0; i<${#ROW_N_SCHED[@]}; i++ )); do
- ROW_N[${i}]=`echo "${ROW_N_WAIT[${i}]}+${ROW_N_SCHED[${i}]}" | bc`
- done
-
- if [ $HEADER -eq 1 ]; then
- echo -n "step, "
- cat ${PID_FILE} | cut -f2 -d' ' | tr "\n" ", "
- echo
- HEADER=0
- fi
-
- if [ ${#ROW_M[@]} -eq 0 ]; then
- continue
- fi
-
- if [ ${#ROW_M[@]} -ne ${#ROW_N[@]} ]; then
- echo "Badly formatted profile data in ${PID_FILE}"
- break
- fi
-
- # Original values are in jiffies and we expect HZ to be 1000
- # on most 2.6 systems thus we divide by 10 to get a percentage.
- echo -n "${STEP}, "
- for (( i=0; i<${#ROW_N[@]}; i++ )); do
- DELTA=`echo "scale=1; (${ROW_N[${i}]}-${ROW_M[${i}]})/10" | bc`
- echo -n "${DELTA}, "
- done
-
- echo
- let STEP=${STEP}+1
-done
-
-
-exit 0
+++ /dev/null
-#!/bin/bash
-
-prog=profile-kpios-post.sh
-. ../.script-config
-
-RUN_POST=${0}
-RUN_PHASE=${1}
-RUN_LOG_DIR=${2}
-RUN_ID=${3}
-RUN_POOL=${4}
-RUN_CHUNK_SIZE=${5}
-RUN_REGION_SIZE=${6}
-RUN_THREAD_COUNT=${7}
-RUN_REGION_COUNT=${8}
-RUN_OFFSET=${9}
-RUN_REGION_NOISE=${10}
-RUN_CHUNK_NOISE=${11}
-RUN_THREAD_DELAY=${12}
-RUN_FLAGS=${13}
-RUN_RESULT=${14}
-
-PROFILE_KPIOS_PIDS_BIN=/home/behlendo/src/zfs/scripts/profile-kpios-pids.sh
-PROFILE_KPIOS_PIDS_LOG=${RUN_LOG_DIR}/${RUN_ID}/pids-summary.csv
-
-PROFILE_KPIOS_DISK_BIN=/home/behlendo/src/zfs/scripts/profile-kpios-disk.sh
-PROFILE_KPIOS_DISK_LOG=${RUN_LOG_DIR}/${RUN_ID}/disk-summary.csv
-
-PROFILE_KPIOS_ARC_LOG=${RUN_LOG_DIR}/${RUN_ID}/arcstats
-PROFILE_KPIOS_VDEV_LOG=${RUN_LOG_DIR}/${RUN_ID}/vdev_cache_stats
-
-KERNEL_BIN="/lib/modules/`uname -r`/kernel/"
-SPL_BIN="${SPLBUILD}/modules/spl/"
-ZFS_BIN="${ZFSBUILD}/lib/"
-
-OPROFILE_SHORT_ARGS="-a -g -l -p ${KERNEL_BIN},${SPL_BIN},${ZFS_BIN}"
-OPROFILE_LONG_ARGS="-d -a -g -l -p ${KERNEL_BIN},${SPL_BIN},${ZFS_BIN}"
-
-OPROFILE_LOG=${RUN_LOG_DIR}/${RUN_ID}/oprofile.txt
-OPROFILE_SHORT_LOG=${RUN_LOG_DIR}/${RUN_ID}/oprofile-short.txt
-OPROFILE_LONG_LOG=${RUN_LOG_DIR}/${RUN_ID}/oprofile-long.txt
-PROFILE_PID=${RUN_LOG_DIR}/${RUN_ID}/pid
-
-if [ "${RUN_PHASE}" != "post" ]; then
- exit 1
-fi
-
-# opcontrol --stop >>${OPROFILE_LOG} 2>&1
-# opcontrol --dump >>${OPROFILE_LOG} 2>&1
-
-kill -s SIGHUP `cat ${PROFILE_PID}`
-rm -f ${PROFILE_PID}
-
-# opreport ${OPROFILE_SHORT_ARGS} >${OPROFILE_SHORT_LOG} 2>&1
-# opreport ${OPROFILE_LONG_ARGS} >${OPROFILE_LONG_LOG} 2>&1
-
-# opcontrol --deinit >>${OPROFILE_LOG} 2>&1
-
-cat /proc/spl/kstat/zfs/arcstats >${PROFILE_KPIOS_ARC_LOG}
-cat /proc/spl/kstat/zfs/vdev_cache_stats >${PROFILE_KPIOS_VDEV_LOG}
-
-# Summarize system time per pid
-${PROFILE_KPIOS_PIDS_BIN} ${RUN_LOG_DIR} ${RUN_ID} >${PROFILE_KPIOS_PIDS_LOG}
-
-# Summarize per device performance
-${PROFILE_KPIOS_DISK_BIN} ${RUN_LOG_DIR} ${RUN_ID} >${PROFILE_KPIOS_DISK_LOG}
-
-exit 0
+++ /dev/null
-#!/bin/bash
-# profile-kpios-pre.sh
-
-trap "PROFILE_KPIOS_READY=1" SIGHUP
-
-RUN_PRE=${0}
-RUN_PHASE=${1}
-RUN_LOG_DIR=${2}
-RUN_ID=${3}
-RUN_POOL=${4}
-RUN_CHUNK_SIZE=${5}
-RUN_REGION_SIZE=${6}
-RUN_THREAD_COUNT=${7}
-RUN_REGION_COUNT=${8}
-RUN_OFFSET=${9}
-RUN_REGION_NOISE=${10}
-RUN_CHUNK_NOISE=${11}
-RUN_THREAD_DELAY=${12}
-RUN_FLAGS=${13}
-RUN_RESULT=${14}
-
-PROFILE_KPIOS_BIN=/home/behlendo/src/zfs/scripts/profile-kpios.sh
-PROFILE_KPIOS_READY=0
-
-OPROFILE_LOG=${RUN_LOG_DIR}/${RUN_ID}/oprofile.txt
-PROFILE_PID=${RUN_LOG_DIR}/${RUN_ID}/pid
-RUN_ARGS=${RUN_LOG_DIR}/${RUN_ID}/args
-
-if [ "${RUN_PHASE}" != "pre" ]; then
- exit 1
-fi
-
-rm -Rf ${RUN_LOG_DIR}/${RUN_ID}/
-mkdir -p ${RUN_LOG_DIR}/${RUN_ID}/
-
-echo "PHASE=${RUN_PHASE}" >>${RUN_ARGS}
-echo "LOG_DIR=${RUN_LOG_DIR}" >>${RUN_ARGS}
-echo "ID=${RUN_ID}" >>${RUN_ARGS}
-echo "POOL=${RUN_POOL}" >>${RUN_ARGS}
-echo "CHUNK_SIZE=${RUN_CHUNK_SIZE}" >>${RUN_ARGS}
-echo "REGION_SIZE=${RUN_REGION_SIZE}" >>${RUN_ARGS}
-echo "THREAD_COUNT=${RUN_THREAD_COUNT}" >>${RUN_ARGS}
-echo "REGION_COUNT=${RUN_REGION_COUNT}" >>${RUN_ARGS}
-echo "OFFSET=${RUN_OFFSET}" >>${RUN_ARGS}
-echo "REGION_NOISE=${RUN_REGION_NOISE}" >>${RUN_ARGS}
-echo "CHUNK_NOISE=${RUN_CHUNK_NOISE}" >>${RUN_ARGS}
-echo "THREAD_DELAY=${RUN_THREAD_DELAY}" >>${RUN_ARGS}
-echo "FLAGS=${RUN_FLAGS}" >>${RUN_ARGS}
-echo "RESULT=${RUN_RESULT}" >>${RUN_ARGS}
-
-# XXX: Oprofile support seems to be broken when I try and start
-# it via a user mode helper script, I suspect the setup is failing.
-# opcontrol --init >>${OPROFILE_LOG} 2>&1
-# opcontrol --setup --vmlinux=/boot/vmlinux >>${OPROFILE_LOG} 2>&1
-
-# Start the profile script
-${PROFILE_KPIOS_BIN} ${RUN_PHASE} ${RUN_LOG_DIR} ${RUN_ID} &
-echo "$!" >${PROFILE_PID}
-
-# Sleep waiting for profile script to be ready, it will
-# signal us via SIGHUP when it is ready to start profiling.
-while [ ${PROFILE_KPIOS_READY} -eq 0 ]; do
- sleep 0.1
-done
-
-# opcontrol --start-daemon >>${OPROFILE_LOG} 2>&1
-# opcontrol --start >>${OPROFILE_LOG} 2>&1
-
-exit 0
+++ /dev/null
-#!/bin/bash
-# profile-kpios.sh
-
-trap "RUN_DONE=1" SIGHUP
-
-RUN_PHASE=${1}
-RUN_LOG_DIR=${2}
-RUN_ID=${3}
-RUN_DONE=0
-
-POLL_INTERVAL=2.99
-
-# Log these pids, the exact pid numbers will vary from system to system
-# so I harvest pid for all the following type of processes from /proc/<pid>/
-#
-# zio_taskq/#
-# spa_zio_issue/#
-# spa_zio_intr/#
-# txg_quiesce_thr
-# txg_sync_thread
-# txg_timelimit_t
-# arc_reclaim_thr
-# l2arc_feed_thre
-# kpios_io/#
-
-ZIO_TASKQ_PIDS=()
-ZIO_REQ_NUL_PIDS=()
-ZIO_IRQ_NUL_PIDS=()
-ZIO_REQ_RD_PIDS=()
-ZIO_IRQ_RD_PIDS=()
-ZIO_REQ_WR_PIDS=()
-ZIO_IRQ_WR_PIDS=()
-ZIO_REQ_FR_PIDS=()
-ZIO_IRQ_FR_PIDS=()
-ZIO_REQ_CM_PIDS=()
-ZIO_IRQ_CM_PIDS=()
-ZIO_REQ_CTL_PIDS=()
-ZIO_IRQ_CTL_PIDS=()
-
-TXG_QUIESCE_PIDS=()
-TXG_SYNC_PIDS=()
-TXG_TIMELIMIT_PIDS=()
-
-ARC_RECLAIM_PIDS=()
-L2ARC_FEED_PIDS=()
-
-KPIOS_IO_PIDS=()
-
-show_pids() {
- echo "* zio_taskq: { ${ZIO_TASKQ_PIDS[@]} } = ${#ZIO_TASKQ_PIDS[@]}"
- echo "* zio_req_nul: { ${ZIO_REQ_NUL_PIDS[@]} } = ${#ZIO_REQ_NUL_PIDS[@]}"
- echo "* zio_irq_nul: { ${ZIO_IRQ_NUL_PIDS[@]} } = ${#ZIO_IRQ_NUL_PIDS[@]}"
- echo "* zio_req_rd: { ${ZIO_REQ_RD_PIDS[@]} } = ${#ZIO_REQ_RD_PIDS[@]}"
- echo "* zio_irq_rd: { ${ZIO_IRQ_RD_PIDS[@]} } = ${#ZIO_IRQ_RD_PIDS[@]}"
- echo "* zio_req_wr: { ${ZIO_REQ_WR_PIDS[@]} } = ${#ZIO_REQ_WR_PIDS[@]}"
- echo "* zio_irq_wr: { ${ZIO_IRQ_WR_PIDS[@]} } = ${#ZIO_IRQ_WR_PIDS[@]}"
- echo "* zio_req_fr: { ${ZIO_REQ_FR_PIDS[@]} } = ${#ZIO_REQ_FR_PIDS[@]}"
- echo "* zio_irq_fr: { ${ZIO_IRQ_FR_PIDS[@]} } = ${#ZIO_IRQ_FR_PIDS[@]}"
- echo "* zio_req_cm: { ${ZIO_REQ_CM_PIDS[@]} } = ${#ZIO_REQ_CM_PIDS[@]}"
- echo "* zio_irq_cm: { ${ZIO_IRQ_CM_PIDS[@]} } = ${#ZIO_IRQ_CM_PIDS[@]}"
- echo "* zio_req_ctl: { ${ZIO_REQ_CTL_PIDS[@]} } = ${#ZIO_REQ_CTL_PIDS[@]}"
- echo "* zio_irq_ctl: { ${ZIO_IRQ_CTL_PIDS[@]} } = ${#ZIO_IRQ_CTL_PIDS[@]}"
- echo "* txg_quiesce: { ${TXG_QUIESCE_PIDS[@]} } = ${#TXG_QUIESCE_PIDS[@]}"
- echo "* txg_sync: { ${TXG_SYNC_PIDS[@]} } = ${#TXG_SYNC_PIDS[@]}"
- echo "* txg_timelimit: { ${TXG_TIMELIMIT_PIDS[@]} } = ${#TXG_TIMELIMIT_PIDS[@]}"
- echo "* arc_reclaim: { ${ARC_RECLAIM_PIDS[@]} } = ${#ARC_RECLAIM_PIDS[@]}"
- echo "* l2arc_feed: { ${L2ARC_FEED_PIDS[@]} } = ${#L2ARC_FEED_PIDS[@]}"
- echo "* kpios_io: { ${KPIOS_IO_PIDS[@]} } = ${#KPIOS_IO_PIDS[@]}"
-}
-
-check_pid() {
- local PID=$1
- local NAME=$2
- local TYPE=$3
- local PIDS=( "$4" )
- local NAME_STRING=`echo ${NAME} | cut -f1 -d'/'`
- local NAME_NUMBER=`echo ${NAME} | cut -f2 -d'/'`
-
- if [ "${NAME_STRING}" == "${TYPE}" ]; then
- if [ -n "${NAME_NUMBER}" ]; then
- PIDS[${NAME_NUMBER}]=${PID}
- else
- PIDS[${#PIDS[@]}]=${PID}
-
- fi
- fi
-
- echo "${PIDS[@]}"
-}
-
-# NOTE: This whole process is crazy slow but it will do for now
-aquire_pids() {
- echo "--- Aquiring ZFS pids ---"
-
- for PID in `ls /proc/ | grep [0-9] | sort -n -u`; do
- if [ ! -e /proc/${PID}/status ]; then
- continue
- fi
-
- NAME=`cat /proc/${PID}/status | head -n1 | cut -f2`
-
- ZIO_TASKQ_PIDS=( `check_pid ${PID} ${NAME} "zio_taskq" \
- "$(echo "${ZIO_TASKQ_PIDS[@]}")"` )
-
- ZIO_REQ_NUL_PIDS=( `check_pid ${PID} ${NAME} "zio_req_nul" \
- "$(echo "${ZIO_REQ_NUL_PIDS[@]}")"` )
-
- ZIO_IRQ_NUL_PIDS=( `check_pid ${PID} ${NAME} "zio_irq_nul" \
- "$(echo "${ZIO_IRQ_NUL_PIDS[@]}")"` )
-
- ZIO_REQ_RD_PIDS=( `check_pid ${PID} ${NAME} "zio_req_rd" \
- "$(echo "${ZIO_REQ_RD_PIDS[@]}")"` )
-
- ZIO_IRQ_RD_PIDS=( `check_pid ${PID} ${NAME} "zio_irq_rd" \
- "$(echo "${ZIO_IRQ_RD_PIDS[@]}")"` )
-
- ZIO_REQ_WR_PIDS=( `check_pid ${PID} ${NAME} "zio_req_wr" \
- "$(echo "${ZIO_REQ_WR_PIDS[@]}")"` )
-
- ZIO_IRQ_WR_PIDS=( `check_pid ${PID} ${NAME} "zio_irq_wr" \
- "$(echo "${ZIO_IRQ_WR_PIDS[@]}")"` )
-
- ZIO_REQ_FR_PIDS=( `check_pid ${PID} ${NAME} "zio_req_fr" \
- "$(echo "${ZIO_REQ_FR_PIDS[@]}")"` )
-
- ZIO_IRQ_FR_PIDS=( `check_pid ${PID} ${NAME} "zio_irq_fr" \
- "$(echo "${ZIO_IRQ_FR_PIDS[@]}")"` )
-
- ZIO_REQ_CM_PIDS=( `check_pid ${PID} ${NAME} "zio_req_cm" \
- "$(echo "${ZIO_REQ_CM_PIDS[@]}")"` )
-
- ZIO_IRQ_CM_PIDS=( `check_pid ${PID} ${NAME} "zio_irq_cm" \
- "$(echo "${ZIO_IRQ_CM_PIDS[@]}")"` )
-
- ZIO_REQ_CTL_PIDS=( `check_pid ${PID} ${NAME} "zio_req_ctl" \
- "$(echo "${ZIO_REQ_CTL_PIDS[@]}")"` )
-
- ZIO_IRQ_CTL_PIDS=( `check_pid ${PID} ${NAME} "zio_irq_ctl" \
- "$(echo "${ZIO_IRQ_CTL_PIDS[@]}")"` )
-
- TXG_QUIESCE_PIDS=( `check_pid ${PID} ${NAME} "txg_quiesce" \
- "$(echo "${TXG_QUIESCE_PIDS[@]}")"` )
-
- TXG_SYNC_PIDS=( `check_pid ${PID} ${NAME} "txg_sync" \
- "$(echo "${TXG_SYNC_PIDS[@]}")"` )
-
- TXG_TIMELIMIT_PIDS=( `check_pid ${PID} ${NAME} "txg_timelimit" \
- "$(echo "${TXG_TIMELIMIT_PIDS[@]}")"` )
-
- ARC_RECLAIM_PIDS=( `check_pid ${PID} ${NAME} "arc_reclaim" \
- "$(echo "${ARC_RECLAIM_PIDS[@]}")"` )
-
- L2ARC_FEED_PIDS=( `check_pid ${PID} ${NAME} "l2arc_feed" \
- "$(echo "${L2ARC_FEED_PIDS[@]}")"` )
- done
-
- # Wait for kpios_io threads to start
- kill -s SIGHUP ${PPID}
- echo "* Waiting for kpios_io threads to start"
- while [ ${RUN_DONE} -eq 0 ]; do
- KPIOS_IO_PIDS=( `ps ax | grep kpios_io | grep -v grep | \
- sed 's/^ *//g' | cut -f1 -d' '` )
- if [ ${#KPIOS_IO_PIDS[@]} -gt 0 ]; then
- break;
- fi
- sleep 0.1
- done
-
- echo "`show_pids`" >${RUN_LOG_DIR}/${RUN_ID}/pids.txt
-}
-
-log_pids() {
- echo "--- Logging ZFS profile to ${RUN_LOG_DIR}/${RUN_ID}/ ---"
- ALL_PIDS=( ${ZIO_TASKQ_PIDS[@]} \
- ${ZIO_REQ_NUL_PIDS[@]} \
- ${ZIO_IRQ_NUL_PIDS[@]} \
- ${ZIO_REQ_RD_PID[@]} \
- ${ZIO_IRQ_RD_PIDS[@]} \
- ${ZIO_REQ_WR_PIDS[@]} \
- ${ZIO_IRQ_WR_PIDS[@]} \
- ${ZIO_REQ_FR_PIDS[@]} \
- ${ZIO_IRQ_FR_PIDS[@]} \
- ${ZIO_REQ_CM_PIDS[@]} \
- ${ZIO_IRQ_CM_PIDS[@]} \
- ${ZIO_REQ_CTL_PIDS[@]} \
- ${ZIO_IRQ_CTL_PIDS[@]} \
- ${TXG_QUIESCE_PIDS[@]} \
- ${TXG_SYNC_PIDS[@]} \
- ${TXG_TIMELIMIT_PIDS[@]} \
- ${ARC_RECLAIM_PIDS[@]} \
- ${L2ARC_FEED_PIDS[@]} \
- ${KPIOS_IO_PIDS[@]} )
-
- while [ ${RUN_DONE} -eq 0 ]; do
- NOW=`date +%s.%N`
- LOG_PIDS="${RUN_LOG_DIR}/${RUN_ID}/pids-${NOW}"
- LOG_DISK="${RUN_LOG_DIR}/${RUN_ID}/disk-${NOW}"
-
- for PID in "${ALL_PIDS[@]}"; do
- if [ -z ${PID} ]; then
- continue;
- fi
-
- if [ -e /proc/${PID}/stat ]; then
- cat /proc/${PID}/stat | head -n1 >>${LOG_PIDS}
- else
- echo "<${PID} exited>" >>${LOG_PIDS}
- fi
- done
-
- cat /proc/diskstats >${LOG_DISK}
-
- NOW2=`date +%s.%N`
- DELTA=`echo "${POLL_INTERVAL}-(${NOW2}-${NOW})" | bc`
- sleep ${DELTA}
- done
-}
-
-aquire_pids
-log_pids
-
-exit 0
+++ /dev/null
-#!/bin/bash
-
-prog=survey.sh
-. ../.script-config
-
-LOG=/home/`whoami`/zpios-logs/`uname -r`/kpios-`date +%Y%m%d`/
-mkdir -p ${LOG}
-
-# Apply all tunings described below to generate some best case
-# numbers for what is acheivable with some more elbow grease.
-NAME="prefetch+zerocopy+checksum+pending1024+kmem"
-echo "----------------------- ${NAME} ------------------------------"
-./zpios.sh \
- "" \
- "zfs_prefetch_disable=1 zfs_vdev_max_pending=1024 zio_bulk_flags=0x100" \
- "--zerocopy" \
- ${LOG}/${NAME}/ \
- "${CMDDIR}/zfs/zfs set checksum=off lustre" | \
- tee ${LOG}/${NAME}.txt
-
-# Baseline number for an out of the box config with no manual tuning.
-# Ideally, we will want things to be automatically tuned and for this
-# number to approach the tweaked out results above.
-NAME="baseline"
-echo "----------------------- ${NAME} ------------------------------"
-./zpios.sh \
- "" \
- "" \
- "" \
- ${LOG}/${NAME}/ | \
- tee ${LOG}/${NAME}.txt
-
-# Disable ZFS's prefetching. For some reason still not clear to me
-# current prefetching policy is quite bad for a random workload.
-# Allow the algorithm to detect a random workload and not do anything
-# may be the way to address this issue.
-NAME="prefetch"
-echo "----------------------- ${NAME} ------------------------------"
-./zpios.sh \
- "" \
- "zfs_prefetch_disable=1" \
- "" \
- ${LOG}/${NAME}/ | \
- tee ${LOG}/${NAME}.txt
-
-# As expected, simulating a zerocopy IO path improves performance
-# by freeing up lots of CPU which is wasted move data between buffers.
-NAME="zerocopy"
-echo "----------------------- ${NAME} ------------------------------"
-./zpios.sh \
- "" \
- "" \
- "--zerocopy" \
- ${LOG}/${NAME}/ | \
- tee ${LOG}/${NAME}.txt
-
-# Disabling checksumming should show some (if small) improvement
-# simply due to freeing up a modest amount of CPU.
-NAME="checksum"
-echo "----------------------- ${NAME} ------------------------------"
-./zpios.sh \
- "" \
- "" \
- "" \
- ${LOG}/${NAME}/ \
- "${CMDDIR}/zfs/zfs set checksum=off lustre" | \
- tee ${LOG}/${NAME}.txt
-
-# Increasing the pending IO depth also seems to improve things likely
-# at the expense of latency. This should be exported more because I'm
-# seeing a much bigger impact there that I would have expected. There
-# may be some low hanging fruit to be found here.
-NAME="pending"
-echo "----------------------- ${NAME} ------------------------------"
-./zpios.sh \
- "" \
- "zfs_vdev_max_pending=1024" \
- "" \
- ${LOG}/${NAME}/ | \
- tee ${LOG}/${NAME}.txt
-
-# To avoid memory fragmentation issues our slab implementation can be
-# based on a virtual address space. Interestingly, we take a pretty
-# substantial performance penalty for this somewhere in the low level
-# IO drivers. If we back the slab with kmem pages we see far better
-# read performance numbers at the cost of memory fragmention and general
-# system instability due to large allocations. This may be because of
-# an optimization in the low level drivers due to the contigeous kmem
-# based memory. This needs to be explained. The good news here is that
-# with zerocopy interfaces added at the DMU layer we could gaurentee
-# kmem based memory for a pool of pages.
-#
-# 0x100 = KMC_KMEM - Force kmem_* based slab
-# 0x200 = KMC_VMEM - Force vmem_* based slab
-NAME="kmem"
-echo "----------------------- ${NAME} ------------------------------"
-./zpios.sh \
- "" \
- "zio_bulk_flags=0x100" \
- "" \
- ${LOG}/${NAME}/ | \
- tee ${LOG}/${NAME}.txt
+++ /dev/null
-#!/bin/bash
-
-prog=unload-zfs.sh
-. ../.script-config
-
-spl_module=${SPLBUILD}/modules/spl/spl.ko
-zlib_module=/lib/modules/${KERNELSRCVER}/kernel/lib/zlib_deflate/zlib_deflate.ko
-zavl_module=${ZFSBUILD}/lib/libavl/zavl.ko
-znvpair_module=${ZFSBUILD}/lib/libnvpair/znvpair.ko
-zport_module=${ZFSBUILD}/lib/libport/zport.ko
-zcommon_module=${ZFSBUILD}/lib/libzcommon/zcommon.ko
-zpool_module=${ZFSBUILD}/lib/libzpool/zpool.ko
-zctl_module=${ZFSBUILD}/lib/libdmu-ctl/zctl.ko
-zpios_module=${ZFSBUILD}/lib/libzpios/zpios.ko
-
-die() {
- echo "${prog}: $1" >&2
- exit 1
-}
-
-unload_module() {
- echo "Unloading $1"
- /sbin/rmmod $1 || die "Failed to unload $1"
-}
-
-if [ $(id -u) != 0 ]; then
- die "Must run as root"
-fi
-
-unload_module ${zpios_module}
-unload_module ${zctl_module}
-unload_module ${zpool_module}
-unload_module ${zcommon_module}
-unload_module ${zport_module}
-unload_module ${znvpair_module}
-unload_module ${zavl_module}
-unload_module ${zlib_module}
-
-# Set DUMP=1 to generate debug logs on unload
-if [ -n "${DUMP}" ]; then
- sysctl -w kernel.spl.debug.dump=1
- # This is racy, I don't like it, but for a helper script it will do.
- SPL_LOG=`dmesg | tail -n 1 | cut -f5 -d' '`
- ${SPLBUILD}/cmd/spl ${SPL_LOG} >${SPL_LOG}.log
- echo
- echo "Dumped debug log: ${SPL_LOG}.log"
- tail -n1 ${SPL_LOG}.log
- echo
-fi
-
-unload_module ${spl_module}
-
-echo "Successfully unloaded ZFS module stack"
-
-exit 0
+++ /dev/null
-#!/bin/bash
-
-prog=zpios-jbod.sh
-. ../.script-config
-
-SPL_OPTIONS=$1
-ZPOOL_OPTIONS=$2
-KPIOS_OPTIONS=$3
-PROFILE_KPIOS_LOGS=$4
-KPIOS_PRE=$5
-KPIOS_POST=$6
-
-PROFILE_KPIOS_PRE=/home/behlendo/src/zfs/scripts/profile-kpios-pre.sh
-PROFILE_KPIOS_POST=/home/behlendo/src/zfs/scripts/profile-kpios-post.sh
-
-echo ------------------------- ZFS TEST LOG ---------------------------------
-echo -n "Date = "; date
-echo -n "Kernel = "; uname -r
-echo ------------------------------------------------------------------------
-
-echo
-./load-zfs.sh "${SPL_OPTIONS}" "${ZPOOL_OPTIONS}"
-
-sysctl -w kernel.spl.debug.mask=0
-sysctl -w kernel.spl.debug.subsystem=0
-
-echo ---------------------- SPL Sysctl Tunings ------------------------------
-sysctl -A | grep spl
-echo
-
-echo ------------------- SPL/ZPOOL Module Tunings ---------------------------
-grep [0-9] /sys/module/spl/parameters/*
-grep [0-9] /sys/module/zpool/parameters/*
-echo
-
-DEVICES="/dev/sdn /dev/sdo /dev/sdp \
- /dev/sdq /dev/sdr /dev/sds \
- /dev/sdt /dev/sdu /dev/sdv \
- /dev/sdw /dev/sdx /dev/sdy"
-
-${CMDDIR}/zpool/zpool create -F lustre ${DEVICES}
-${CMDDIR}/zpool/zpool status lustre
-
-if [ -n "${KPIOS_PRE}" ]; then
- ${KPIOS_PRE}
-fi
-
-# Usage: zpios
-# --chunksize -c =values
-# --chunksize_low -a =value
-# --chunksize_high -b =value
-# --chunksize_incr -g =value
-# --offset -o =values
-# --offset_low -m =value
-# --offset_high -q =value
-# --offset_incr -r =value
-# --regioncount -n =values
-# --regioncount_low -i =value
-# --regioncount_high -j =value
-# --regioncount_incr -k =value
-# --threadcount -t =values
-# --threadcount_low -l =value
-# --threadcount_high -h =value
-# --threadcount_incr -e =value
-# --regionsize -s =values
-# --regionsize_low -A =value
-# --regionsize_high -B =value
-# --regionsize_incr -C =value
-# --cleanup -x
-# --verify -V
-# --zerocopy -z
-# --threaddelay -T =jiffies
-# --regionnoise -I =shift
-# --chunknoise -N =bytes
-# --prerun -P =pre-command
-# --postrun -R =post-command
-# --log -G =log directory
-# --pool | --path -p =pool name
-# --load -L =dmuio
-# --help -? =this help
-# --verbose -v =increase verbosity
-# --threadcount=256,256,256,256,256 \
-
-CMD="${CMDDIR}/zpios/zpios \
- --load=dmuio \
- --path=lustre \
- --chunksize=1M \
- --regionsize=4M \
- --regioncount=16384 \
- --threadcount=256 \
- --offset=4M \
- --cleanup \
- --verbose \
- --human-readable \
- ${KPIOS_OPTIONS} \
- --prerun=${PROFILE_KPIOS_PRE} \
- --postrun=${PROFILE_KPIOS_POST} \
- --log=${PROFILE_KPIOS_LOGS}"
-echo
-date
-echo ${CMD}
-$CMD
-date
-
-if [ -n "${KPIOS_POST}" ]; then
- ${KPIOS_POST}
-fi
-
-${CMDDIR}/zpool/zpool destroy lustre
-./unload-zfs.sh
+++ /dev/null
-#!/bin/bash
-
-prog=zpios.sh
-. ../.script-config
-
-SPL_OPTIONS="spl_debug_mask=0 spl_debug_subsys=0 ${1}"
-ZPOOL_OPTIONS=$2
-KPIOS_OPTIONS=$3
-PROFILE_KPIOS_LOGS=$4
-KPIOS_PRE=$5
-KPIOS_POST=$6
-
-PROFILE_KPIOS_PRE=/home/behlendo/src/zfs/scripts/profile-kpios-pre.sh
-PROFILE_KPIOS_POST=/home/behlendo/src/zfs/scripts/profile-kpios-post.sh
-
-DEVICES="/dev/hda"
-
-echo ------------------------- ZFS TEST LOG ---------------------------------
-echo -n "Date = "; date
-echo -n "Kernel = "; uname -r
-echo ------------------------------------------------------------------------
-
-echo
-./load-zfs.sh "${SPL_OPTIONS}" "${ZPOOL_OPTIONS}"
-
-echo ---------------------- SPL Sysctl Tunings ------------------------------
-sysctl -A | grep spl
-echo
-
-echo ------------------- SPL/ZPOOL Module Tunings ---------------------------
-if [ -d /sys/module/spl/parameters ]; then
- grep [0-9] /sys/module/spl/parameters/*
- grep [0-9] /sys/module/zpool/parameters/*
-else
- grep [0-9] /sys/module/spl/*
- grep [0-9] /sys/module/zpool/*
-fi
-echo
-
-echo "${CMDDIR}/zpool/zpool create -f lustre ${DEVICES}"
-${CMDDIR}/zpool/zpool create -f lustre ${DEVICES}
-
-echo "${CMDDIR}/zpool/zpool status lustre"
-${CMDDIR}/zpool/zpool status lustre
-
-echo "Waiting for /dev/kpios to come up..."
-while [ ! -c /dev/kpios ]; do
- sleep 1
-done
-
-if [ -n "${KPIOS_PRE}" ]; then
- ${KPIOS_PRE}
-fi
-
-# Usage: zpios
-# --chunksize -c =values
-# --chunksize_low -a =value
-# --chunksize_high -b =value
-# --chunksize_incr -g =value
-# --offset -o =values
-# --offset_low -m =value
-# --offset_high -q =value
-# --offset_incr -r =value
-# --regioncount -n =values
-# --regioncount_low -i =value
-# --regioncount_high -j =value
-# --regioncount_incr -k =value
-# --threadcount -t =values
-# --threadcount_low -l =value
-# --threadcount_high -h =value
-# --threadcount_incr -e =value
-# --regionsize -s =values
-# --regionsize_low -A =value
-# --regionsize_high -B =value
-# --regionsize_incr -C =value
-# --cleanup -x
-# --verify -V
-# --zerocopy -z
-# --threaddelay -T =jiffies
-# --regionnoise -I =shift
-# --chunknoise -N =bytes
-# --prerun -P =pre-command
-# --postrun -R =post-command
-# --log -G =log directory
-# --pool | --path -p =pool name
-# --load -L =dmuio
-# --help -? =this help
-# --verbose -v =increase verbosity
-
-# --prerun=${PROFILE_KPIOS_PRE} \
-# --postrun=${PROFILE_KPIOS_POST} \
-
-CMD="${CMDDIR}/zpios/zpios \
- --load=dmuio \
- --path=lustre \
- --chunksize=1M \
- --regionsize=4M \
- --regioncount=64 \
- --threadcount=4 \
- --offset=4M \
- --cleanup \
- --verbose \
- --human-readable \
- ${KPIOS_OPTIONS} \
- --log=${PROFILE_KPIOS_LOGS}"
-echo
-date
-echo ${CMD}
-$CMD
-date
-
-if [ -n "${KPIOS_POST}" ]; then
- ${KPIOS_POST}
-fi
-
-${CMDDIR}/zpool/zpool destroy lustre
-
-echo ---------------------- SPL Sysctl Tunings ------------------------------
-sysctl -A | grep spl
-echo
-
-echo ------------------------ KSTAT Statistics ------------------------------
-echo ARCSTATS
-cat /proc/spl/kstat/zfs/arcstats
-echo
-echo VDEV_CACHE_STATS
-cat /proc/spl/kstat/zfs/vdev_cache_stats
-echo
-echo SLAB
-cat /proc/spl/kmem/slab
-echo
-
-./unload-zfs.sh
projects / mirror_zfs-debian.git / commitdiff