Date: Mon, 09 May 2005 21:53:05 -0400 From: Mike Tancsa <mike@sentex.net> To: Amandeep <aman@chamkila.org> Cc: freebsd-hackers@freebsd.org Subject: Re: Low HDD tranfer rate with FreeBSD 5.3-Release Message-ID: <ej4081lgb5qj5642mmdd6efpqkjde70pbj@4ax.com> In-Reply-To: <427FAB5F.6070508@chamkila.org> References: <427FA802.90805@chamkila.org> <427FA8CD.8040405@centtech.com> <427FAB5F.6070508@chamkila.org>
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On Mon, 09 May 2005 11:26:39 -0700, in sentex.lists.freebsd.hackers
you wrote:
>Hi Eric,
>
>
>Shouldnt it be around 54MB/s for a regular IDE drive.
As I did a=20
[releng5-865]# dd if=3D/dev/zero of=3D/tmp/test bs=3D8192 count=3D30000
30000+0 records in
30000+0 records out
245760000 bytes transferred in 4.447737 secs (55255063 bytes/sec)
[releng5-865]#=20
5.4-STABLE FreeBSD 5.4-STABLE #1: Sat May 7 20:42:37 EDT 2005=20
And, after flushing the cache by rebooting,
[releng5-865]# dd if=3D/tmp/test of=3D/dev/null bs=3D8192
30000+0 records in
30000+0 records out
245760000 bytes transferred in 4.517612 secs (54400422 bytes/sec)
[releng5-865]#=20
run of the mill PATA segate
ad0: 38166MB <ST340014A/3.06> [77545/16/63] at ata0-master UDMA100
You really should update to 5.4R
[releng5-865]# dmesg | head -13
Copyright (c) 1992-2005 The FreeBSD Project.
Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993,
1994
The Regents of the University of California. All rights
reserved.
=46reeBSD 5.4-STABLE #1: Sat May 7 20:42:37 EDT 2005
mdtancsa@releng5-865.sentex.ca:/usr/obj/usr/src/sys/pioneer
ACPI APIC Table: <AOpen AWRDACPI>
Timecounter "i8254" frequency 1193182 Hz quality 0
CPU: Intel(R) Celeron(R) CPU 2.40GHz (2400.41-MHz 686-class CPU)
Origin =3D "GenuineIntel" Id =3D 0xf33 Stepping =3D 3
=46eatures=3D0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,=
PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE>
real memory =3D 267321344 (254 MB)
avail memory =3D 251940864 (240 MB)
ioapic0 <Version 2.0> irqs 0-23 on motherboard
...
atapci0: <Intel ICH5 UDMA100 controller> port
0xf000-0xf00f,0x376,0x170-0x177,0x3f6,0x1f0-0x1f7 at device 31.1 on
pci0
[releng5-865]#=20
---Mike
--------------------------------------------------------
Mike Tancsa, Sentex communications http://www.sentex.net
Providing Internet Access since 1994
mike@sentex.net, (http://www.tancsa.com)
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