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Commandline/command line/command-line where being used interchangeably, which is not correct (see: https://learn.microsoft.com/en-us/style-guide/a-z-word-list-term-collections/c/command-line). use command-line when it is an adjective (e.g. "command-line interface") and use command line when it is a noun (e.g. "change the setting from the command line") Signed-off-by: Noel Ullreich <n.ullreich@proxmox.com> [S.I.: fix a stray ' ' introduced with this commit] Signed-off-by: Stoiko Ivanov <s.ivanov@proxmox.com>
73 lines
1.6 KiB
Plaintext
73 lines
1.6 KiB
Plaintext
[[chapter_pmgperf]]
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ifdef::manvolnum[]
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pmgperf(1)
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==========
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:pmg-toplevel:
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NAME
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----
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pmgperf - Proxmox Simple Performance Benchmark
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SYNOPSIS
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--------
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include::pmgperf.1-synopsis.adoc[]
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DESCRIPTION
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-----------
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endif::manvolnum[]
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ifndef::manvolnum[]
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pmgperf - Proxmox Simple Performance Benchmark
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==============================================
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:pmg-toplevel:
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endif::manvolnum[]
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The command-line tool `pmgperf` gathers some general
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performance data. This is mostly useful for debugging and identifying
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performance bottlenecks. It computes the following metrics:
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[horizontal]
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CPU BOGOMIPS:: bogomips sum of all CPUs
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REGEX/SECOND:: regular expressions per second (perl performance
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test), should be above 1000000.
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HD SIZE:: hard disk size
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BUFFERED READS:: simple HD read test. Modern HDs should reach at
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least 100 MB/sec
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AVERAGE SEEK TIME:: tests average seek time. Fast SCSI HDs reach
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values < 8 milliseconds. Common IDE/SATA disks get values from 15 to
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20 ms. SSD seek times should be below 1ms.
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FSYNCS/SECOND:: value should be greater than 200 (you should enable
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'write-back' cache mode on you RAID controller - needs a battery
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backed cache (BBWC)).
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DNS EXT:: average time to resolve an external DNS name
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DNS INT:: average time to resolve a local DNS name
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Here is an example of the output generated by the tool:
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----
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# pmgperf
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CPU BOGOMIPS: 16759.60
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REGEX/SECOND: 1186304
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HD SIZE: 60.78 GB (/dev/sda1)
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BUFFERED READS: 209.84 MB/sec
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AVERAGE SEEK TIME: 1.24 ms
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FSYNCS/SECOND: 2198.79
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DNS EXT: 35.69 ms
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DNS INT: 1.41 ms (yourdomain.tld)
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----
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ifdef::manvolnum[]
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include::pmg-copyright.adoc[]
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endif::manvolnum[]
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