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Re: Fwd: disk diagnostics

From: Bill Hacker <wbh@xxxxxxxxxxxxx>
Date: Thu, 27 Jul 2006 05:27:04 +0800

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Pieter Dumon wrote:


> ... I get the same problem for instance when untarring an
> archive of some tens of MB: it takes ages.

I haven't had a DragonFly install active for over a year, but using a tarball we 
all have access to - the 98.5 MB DFLY 1.6 iso, I get:


2U server:

time tar xfz dfly-1.6.0_REL.iso.gz

4.896u 2.366s 0:22.07 32.8%     75+3681k 411+1316io 0pf+0w

DreeBSD 6.1 AMD-64, 3 GHz Pentium-D Dual-Core with 2 GB DDR
Mount was on twin IBM/Hitachi 80 GB PATA UDMA 133 HDD, gmirror software RAID1

Not sure if it matters for an I/O speed test, but the AMD-64 toolset gives me 
*many* error messages of the general form:

Unsupported RRIP extension for 56
  PN(16): 16 00 00 00 00 00 00 16 38 00 00 00 00 00 00 38


1U Server:

time tar xfz dfly-1.6.0_REL.iso.gz

real    0m20.255s
user    0m17.747s
sys     0m2.363s

FreeBSD 4.11-STABLE, 2000+ VIA C3 Samuel 2 (796.10-MHz clock) 1 GB DDR
Mount was on twin IBM 60 GB UDMA 100 HDD, atacontrol software RAID1


Software RAID1 on obsolescent drives such as these is nowhere near 'bleeding 
edge', so DragonFly on your hardware should be comparable, if not better - eg 
complete in *seconds* what you are reporting in *minutes*.

Something just has to be wrong with your set up.



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