[pmg-docs.git] / pmgperf.adoc

[[chapter_pmgperf]]
ifdef::manvolnum[]
pmgperf(1)
==========
:pmg-toplevel:

NAME
----

pmgperf - Proxmox Simple Performance Benchmark


SYNOPSIS
--------

include::pmgperf.1-synopsis.adoc[]


DESCRIPTION
-----------
endif::manvolnum[]
ifndef::manvolnum[]
pmgperf - Proxmox Simple Performance Benchmark
==============================================
:pmg-toplevel:
endif::manvolnum[]

The command line tool `pmgperf` tries to gather some general
performance data. This is mostly useful for debugging and to identify
performance bottlenecks. It computes the following metrics:

[horizontal]
CPU BOGOMIPS:: bogomips sum of all CPUs

REGEX/SECOND:: regular expressions per second (perl performance
  test), should be above 1000000.

HD SIZE:: harddisk size

BUFFERED READS:: simple HD read test. Modern HDs should reach at
least 100 MB/sec

AVERAGE SEEK TIME:: tests average seek time. Fast SCSI HDs reach
values < 8 milliseconds. Common IDE/SATA disks get values from 15 to
20 ms. SSD seek times should be below 1ms.

FSYNCS/SECOND:: value should be greater than 200 (you should enable
'write back' cache mode on you RAID controller - needs a battery
backed cache (BBWC)).

DNS EXT:: average time to resolve an external DNS name

DNS INT:: average time to resolve a local DNS name

Here is an example output generated by the tool:

----
# pmgperf
CPU BOGOMIPS:      16759.60
REGEX/SECOND:      1186304
HD SIZE:           60.78 GB (/dev/sda1)
BUFFERED READS:    209.84 MB/sec
AVERAGE SEEK TIME: 1.24 ms
FSYNCS/SECOND:     2198.79
DNS EXT:           35.69 ms
DNS INT:           1.41 ms (yourdomain.tld)
----

ifdef::manvolnum[]
include::pmg-copyright.adoc[]
endif::manvolnum[]
Commit	Line	Data
	1	[[chapter_pmgperf]]
	2	ifdef::manvolnum[]
	3	pmgperf(1)
	4	==========
	5	:pmg-toplevel:
	6
	7	NAME
	8	----
	9
	10	pmgperf - Proxmox Simple Performance Benchmark
	11
	12
	13	SYNOPSIS
	14	--------
	15
	16	include::pmgperf.1-synopsis.adoc[]
	17
	18
	19	DESCRIPTION
	20	-----------
	21	endif::manvolnum[]
	22	ifndef::manvolnum[]
	23	pmgperf - Proxmox Simple Performance Benchmark
	24	==============================================
	25	:pmg-toplevel:
	26	endif::manvolnum[]
	27
	28	The command line tool `pmgperf` tries to gather some general
	29	performance data. This is mostly useful for debugging and to identify
	30	performance bottlenecks. It computes the following metrics:
	31
	32	[horizontal]
	33	CPU BOGOMIPS:: bogomips sum of all CPUs
	34
	35	REGEX/SECOND:: regular expressions per second (perl performance
	36	test), should be above 1000000.
	37
	38	HD SIZE:: harddisk size
	39
	40	BUFFERED READS:: simple HD read test. Modern HDs should reach at
	41	least 100 MB/sec
	42
	43	AVERAGE SEEK TIME:: tests average seek time. Fast SCSI HDs reach
	44	values < 8 milliseconds. Common IDE/SATA disks get values from 15 to
	45	20 ms. SSD seek times should be below 1ms.
	46
	47	FSYNCS/SECOND:: value should be greater than 200 (you should enable
	48	'write back' cache mode on you RAID controller - needs a battery
	49	backed cache (BBWC)).
	50
	51	DNS EXT:: average time to resolve an external DNS name
	52
	53	DNS INT:: average time to resolve a local DNS name
	54
	55	Here is an example output generated by the tool:
	56
	57	----
	58	# pmgperf
	59	CPU BOGOMIPS: 16759.60
	60	REGEX/SECOND: 1186304
	61	HD SIZE: 60.78 GB (/dev/sda1)
	62	BUFFERED READS: 209.84 MB/sec
	63	AVERAGE SEEK TIME: 1.24 ms
	64	FSYNCS/SECOND: 2198.79
	65	DNS EXT: 35.69 ms
	66	DNS INT: 1.41 ms (yourdomain.tld)
	67	----
	68
	69	ifdef::manvolnum[]
	70	include::pmg-copyright.adoc[]
	71	endif::manvolnum[]
	72