Date:	Fri, 26 Oct 2012 15:48:48 +0800
From:	Ni zhan Chen <nizhan.chen@...il.com>
To:	Mel Gorman <mgorman@...e.de>
CC:	Linux-MM <linux-mm@...ck.org>, LKML <linux-kernel@...r.kernel.org>
Subject: Re: MMTests 0.06

On 10/12/2012 10:51 PM, Mel Gorman wrote:
> MMTests 0.06 is a configurable test suite that runs a number of common
> workloads of interest to MM developers. There are multiple additions
> all but in many respects the most useful will be automatic package
> installation. The package names are based on openSUSE but it's easy to
> create mappings in bin/install-depends where the package names differ. The
> very basics of monitoring NUMA efficiency is there as well and the autonuma
> benchmark has a test. The stats it reports for NUMA need significant
> improvement but for the most part that should be straight forward.
>
> Changelog since v0.05
> o Automatically install packages (need name mappings for other distros)
> o Add benchmark for autonumabench
> o Add support for benchmarking NAS with MPI
> o Add pgbench for autonumabench (may need a bit more work)
> o Upgrade postgres version to 9.2.1
> o Upgrade kernel verion used for kernbench to 3.0 for newer toolchains
> o Alter mailserver config to finish in a reasonable time
> o Add monitor for perf sched
> o Add moinitor that gathers ftrace information with trace-cmd
> o Add preliminary monitors for NUMA stats (very basic)
> o Specify ftrace events to monitor from config file
> o Remove the bulk of whats left of VMRegress
> o Convert shellpacks to a template format to auto-generate boilerplate code
> o Collect lock_stat information if enabled
> o Run multiple iterations of aim9
> o Add basic regression tests for Cross Memory Attach
> o Copy with preempt being enabled in highalloc stres tests
> o Have largedd cope with a missing large file to work with
> o Add a monitor-only mode to just capture logs
> o Report receive-side throughput in netperf for results
>
> At LSF/MM at some point a request was made that a series of tests
> be identified that were of interest to MM developers and that could be
> used for testing the Linux memory management subsystem. There is renewed
> interest in some sort of general testing framework during discussions for
> Kernel Summit 2012 so here is what I use.
>
> http://www.csn.ul.ie/~mel/projects/mmtests/
> http://www.csn.ul.ie/~mel/projects/mmtests/mmtests-0.06-mmtests-0.01.tar.gz
>
> There are a number of stock configurations stored in configs/.  For example
> config-global-dhp__pagealloc-performance runs a number of tests that
> may be able to identify performance regressions or gains in the page
> allocator. Similarly there network and scheduler configs. There are also
> more complex options. config-global-dhp__parallelio-memcachetest will run
> memcachetest in the foreground while doing IO of different sizes in the
> background to measure how much unrelated IO affects the throughput of an
> in-memory database.
>
> This release is also a little rough and the extraction scripts could
> have been tidier but they were mostly written in an airport and for the
> most part they work as advertised. I'll fix bugs as according as they are
> brought to my attention.
>
> The stats reporting still needs work because while some tests know how
> to make a better estimate of mean by filtering outliers it is not being
> handled consistently and the methodology needs work. I know filtering
> statistics like this is a major flaw in the methodology but the decision
> was made in this case in the interest of the benchmarks with unstable
> results completing in a reasonable time.

Hi Gorman,

Could MMTests 0.07 auto download related packages for different 
distributions?

Regards,
Chen


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