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From: Evaldo Gardenali <evaldo@gardenali.biz>
To: linux-kernel@vger.kernel.org
Subject: buggy raid checksumming selection?
Date: Fri, 23 Jan 2004 11:40:53 -0200	[thread overview]
Message-ID: <40112465.8040801@gardenali.biz> (raw)

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Hi!

Uhh. correct me if I am wrong, but shouldnt it select the fastest algorithm?

md: raid5 personality registered as nr 4
raid5: measuring checksumming speed
~   8regs     :  2747.600 MB/sec
~   32regs    :  1702.000 MB/sec
~   pIII_sse  :  1997.200 MB/sec
~   pII_mmx   :  4216.400 MB/sec
~   p5_mmx    :  5408.000 MB/sec
raid5: using function: pIII_sse (1997.200 MB/sec)
md: md driver 0.90.0 MAX_MD_DEVS=256, MD_SB_DISKS=27
md: Autodetecting RAID arrays.
~ [events: 00000036]
~ [events: 00000036]
~ [events: 00000036]
md: autorun ...

Linux server1 2.4.25-pre6-athlonxp #1 Tue Jan 20 11:49:48 BRST 2004 i686
unknown unknown GNU/Linux
"-athlonxp" was added by me, just for identification purposes. NO other
sources except vanilla 2.4.24 and official 2.4.25-pre6 patch were involved

evaldo@server1:~$ cat /proc/cpuinfo
processor       : 0
vendor_id       : AuthenticAMD
cpu family      : 6
model           : 8
model name      : AMD Athlon(TM) XP 2200+
stepping        : 1
cpu MHz         : 1800.109
cache size      : 256 KB
fdiv_bug        : no
hlt_bug         : no
f00f_bug        : no
coma_bug        : no
fpu             : yes
fpu_exception   : yes
cpuid level     : 1
wp              : yes
flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge
mca cmov pat pse36 mmx fxsr sse syscall mmxext 3dnowext 3dnow
bogomips        : 3591.37

root@server1:~# lspci
00:00.0 Host bridge: VIA Technologies, Inc. VT8377 [KT400 AGP] Host Bridge
00:01.0 PCI bridge: VIA Technologies, Inc. VT8235 PCI Bridge
00:0b.0 Ethernet controller: Macronix, Inc. [MXIC] MX987x5 (rev 20)
00:0c.0 VGA compatible controller: S3 Inc. 86c764/765 [Trio32/64/64V+]
(rev 44)
00:10.0 USB Controller: VIA Technologies, Inc. USB (rev 80)
00:10.1 USB Controller: VIA Technologies, Inc. USB (rev 80)
00:10.2 USB Controller: VIA Technologies, Inc. USB (rev 80)
00:10.3 USB Controller: VIA Technologies, Inc. USB 2.0 (rev 82)
00:11.0 ISA bridge: VIA Technologies, Inc. VT8235 ISA Bridge
00:11.1 IDE interface: VIA Technologies, Inc. VT82C586/B/686A/B PIPC Bus
Master IDE (rev 06)
00:11.5 Multimedia audio controller: VIA Technologies, Inc. VT8233 AC97
Audio Controller (rev 50)
00:12.0 Ethernet controller: VIA Technologies, Inc. VT6102 [Rhine-II]
(rev 74)
root@server1:~#

Thanks
Evaldo
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             reply	other threads:[~2004-01-23 13:40 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-01-23 13:40 Evaldo Gardenali [this message]
2004-01-23 13:58 ` John Bradford
2004-01-23 14:13 ` Dave Jones
2004-01-23 14:22   ` Nick Piggin
2004-01-23 14:38     ` Dave Jones
2004-01-23 15:16   ` Ed Tomlinson
2004-01-23 14:27 Randal, Phil

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