This topic is a place to collect information on AFS performance measurements and tools.
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## Tools
### Andrew Benchmark
This old and venerable suite has been used many times. It is mentioned in the [FAQ](https://grand.central.org/twiki/bin/view/AFSLore/AdminFAQ#3_18_What_is_the_Andrew_Benchmar).
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### afsfsperf (low-level fileserver performance tester)
[[ArlaAFS]] comes with a tool called afsfsperf, apparently available as part of their release. afsfsperf is a small programm that acts like an minimal afs-client to observe the performace of the fileserver. For relevant numbers you need to run your instance of afsfsperf on a machine that is at least as fast as the fileserver.
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### PostMark
A [NetApp paper on PostMark](http://www.netapp.com/tech_library/3022.html).
The numbers below were made with version 1.53 of PostMark from [[NetApp]].
Older versions of PostMark output wrong results for the number of "files deleted"!!
Here is version [1\.53 of PostMark](http://www.slac.stanford.edu/~alfw/postmark-1.53.c.gz) [Jeffrey Katcher](mailto:katcher@netapp.com) sent me.
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## Measurements
### AFS vs NFS
A chart showing scalability is in the [FAQ](https://grand.central.org/twiki/bin/view/AFSLore/GeneralFAQ#1_11_How_does_AFS_compare_with_N).
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### Afsfsperf collection
A large collection of information. All numbers done with afsfsperf from the [[ArlaAFS]] package. Varios of OS'es and filesystems benchmarked.
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### Solaris x86 Inode vs Red Hat Namei on same hardware
From a [message](https://lists.openafs.org/pipermail/openafs-info/2003-April/008916.html) on the [[OpenAFS-Info]] mailing list:
> I was wondering how Solaris x86 would be doing as AFS fileserver compared to Red Hat 7.3 Linux on the same hardware.
>
> I've conducted some benchmarks using [[PostMark|Main/PerformanceWork#PostMark]] and arla's afsfsperf to get an answer (not _the_ answer!) to this question.
>
> I've used [[OpenAFS]]-1.2.8 with inode and namei interface on Solaris with non-logging and logging file system for the /vicepa partition.
>
> On Linux I've used [[OpenAFS]]-1.2.8 (namei only) with ext2, ext3, reiserfs v1, and reiserfs v2 for /vicepa.
>
> The results are available under [http://www.slac.stanford.edu/~alfw/AFS\_bench2.html](http://www.slac.stanford.edu/~alfw/AFS_bench2.html)
>
> Alf Wachsmann | e-mail: alfw@slac.stanford.edu
> SLAC Computing Service | Phone: +1-650-926-4802
> 2575 Sand Hill Road, M/S 97 | FAX: +1-650-926-3329
> Menlo Park, CA 94025, USA | Office: Bldg. 50/323
> http://www.slac.stanford.edu/~alfw (PGP)
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-- [[TedAnderson]] - 25 Apr 2003