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[pve-qemu-kvm.git] / debian / patches / old / jemalloc.patch

diff --git a/debian/patches/old/jemalloc.patch b/debian/patches/old/jemalloc.patch
deleted file mode 100644 (file)
index 839689f..0000000
--- a/debian/patches/old/jemalloc.patch
+++ /dev/null
@@ -1,143 +0,0 @@
-From patchwork Fri Jun 19 10:56:58 2015
-Content-Type: text/plain; charset="utf-8"
-MIME-Version: 1.0
-Content-Transfer-Encoding: 7bit
-Subject: configure: Add support for jemalloc
-From: Alexandre DERUMIER <aderumier@odiso.com>
-X-Patchwork-Id: 486671
-Message-Id: <1434711418-20429-1-git-send-email-aderumier@odiso.com>
-To: qemu-devel@nongnu.org
-Cc: Alexandre Derumier <aderumier@odiso.com>
-Date: Fri, 19 Jun 2015 12:56:58 +0200
-
-This adds "--enable-jemalloc" and "--disable-jemalloc" to allow linking
-to jemalloc memory allocator.
-
-We have already tcmalloc support,
-but it seem to not working well with a lot of iothreads/disks.
-
-The main problem is that tcmalloc use a shared thread cache of 16MB
-by default.
-With more threads, this cache is shared, and some bad garbage collections
-can occur if the cache is too low.
-
-It's possible to tcmalloc cache increase it with a env var:
-TCMALLOC_MAX_TOTAL_THREAD_CACHE_BYTES=256MB
-
-With default 16MB, performances are  really bad with more than 2 disks.
-Increasing to 256MB, it's helping but still have problem with 16 disks/iothreads.
-
-Jemalloc don't have performance problem with default configuration.
-
-Here the benchmark results in iops of 1 qemu vm randread 4K iodepth=32,
-with rbd block backend (librbd is doing a lot of memory allocation),
-1 iothread by disk
-
-glibc malloc
-------------
-
-1 disk      29052
-2 disks     55878
-4 disks     127899
-8 disks     240566
-15 disks    269976
-
-jemalloc
---------
-
-1 disk      41278
-2 disks     75781
-4 disks     195351
-8 disks     294241
-15 disks    298199
-
-tcmalloc 2.2.1 default 16M cache
---------------------------------
-
-1 disk   37911
-2 disks  67698
-4 disks  41076
-8 disks  43312
-15 disks 37569
-
-tcmalloc : 256M cache
----------------------------
-
-1 disk     33914
-2 disks    58839
-4 disks    148205
-8 disks    213298
-15 disks   218383
-
-Signed-off-by: Alexandre Derumier <aderumier@odiso.com>
-Reviewed-by: Fam Zheng <famz@redhat.com>
----
- configure | 29 +++++++++++++++++++++++++++++
- 1 file changed, 29 insertions(+)
-
-diff --git a/configure b/configure
-index 222694f..2fe1e05 100755
---- a/configure
-+++ b/configure
-@@ -338,6 +338,7 @@ vhdx=""
- vhdx=""
- numa=""
- tcmalloc="no"
-+jemalloc="no"
- 
- # parse CC options first
- for opt do
-@@ -1149,6 +1150,10 @@ for opt do
-   ;;
-   --enable-tcmalloc) tcmalloc="yes"
-   ;;
-+  --disable-jemalloc) jemalloc="no"
-+  ;;
-+  --enable-jemalloc) jemalloc="yes"
-+  ;;
-   *)
-       echo "ERROR: unknown option $opt"
-       echo "Try '$0 --help' for more information"
-@@ -3345,6 +3352,11 @@ EOF
-   fi
- fi
- 
-+if test "$tcmalloc" = "yes" && test "$jemalloc" = "yes" ; then
-+    echo "ERROR: tcmalloc && jemalloc can't be used at the same time"
-+    exit 1
-+fi
-+
- ##########################################
- # tcmalloc probe
- 
-@@ -3362,6 +3374,22 @@ EOF
- fi
- 
- ##########################################
-+# jemalloc probe
-+
-+if test "$jemalloc" = "yes" ; then
-+  cat > $TMPC << EOF
-+#include <stdlib.h>
-+int main(void) { malloc(1); return 0; }
-+EOF
-+
-+  if compile_prog "" "-ljemalloc" ; then
-+    LIBS="-ljemalloc $LIBS"
-+  else
-+    feature_not_found "jemalloc" "install jemalloc devel"
-+  fi
-+fi
-+
-+##########################################
- # signalfd probe
- signalfd="no"
- cat > $TMPC << EOF
-@@ -4573,6 +4591,7 @@ echo "snappy support    $snappy"
- echo "bzip2 support     $bzip2"
- echo "NUMA host support $numa"
- echo "tcmalloc support  $tcmalloc"
-+echo "jemalloc support  $jemalloc"
- 
- if test "$sdl_too_old" = "yes"; then
- echo "-> Your SDL version is too old - please upgrade to have SDL support"