Whenever I do testing of patches and puts the results on trac, I
usually put quite detailed information about the hardware/software
used.

Typically I write
* Make and model of computer
* CPU(s)
* RAM
* Exact version of the operating system.
* Compiler (usually gcc), with version number.

In the case of the testing I do on Linux or OS X I normally just write
something like

* Linux sage.math
* OS X bsd.math

since I don't know what these machines or precisely what operating
systems they are running. Since they are likely to get updated at some
point, it would seem sensible that the information is added on trac
tickets.

I'm somewhat surprised 'uname -a' does not even indicate on sage.math
whether its Ubunta, Debian or whatever (I think it's the former, but
do not know).

For any that are interested, I can tell you the urrent hardware
configuration of t2.math is

* Sun T5240 server
* 32GB RAM
* 2 x 1167 MHz UltraSPARC T2+ processors  (8 cores per processor, 64
hardware threads per processor)
* 2 x 147 GB disks, mirrored using a ZFS file system.
* Solaris 10 update 7 (05/2009 release)

Of course, that could change over time. If you want to know your way
around a Solaris system a bit more, here are some semi-useful commands

* /usr/sbin/prtconf | grep Memory (gives you memory information)
* /usr/platform/`uname -i`/sbin/prtdiag (More hardware information)
* showrev (more information)
* /usr/sbin/psrinfo -v (gives you processor information)
* prstat (like top, but more accurate on Solaris)
* cat /etc/release (gives operating system information)
* uname -a (gives you the usual things)
* uptime (how long the system has been up, and load average)
* dmesg (system messages. The "NFS stale" messages are a result of the
the ZIL log being turned off on 'disk.math')
* df -h (gives you some information about disk usage)
* The way to find out if its running out of memory is to use the 'sr'
column of 'vmstat'. (Don't even think about believing top)

Dave

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