From: "Chen, Kenneth W" <kenneth.w.chen@intel.com>
To: linux-scsi@vger.kernel.org
Cc: "'Moore, Eric Dean'" <Eric.Moore@lsil.com>
Subject: mpt fusion driver performance issue in 2.6.14-rc2
Date: Thu, 29 Sep 2005 11:59:19 -0700 [thread overview]
Message-ID: <200509291859.j8TIxKg13339@unix-os.sc.intel.com> (raw)
Something happened in between kernel 2.6.12 and 2.6.14-rc2, where
disk performance went 20X slower on the latest release kernel. I
suspect it has something to do with the fusion driver. This showed
up in the boot log: "mptscsih: ioc0: DV: Release failed." is it
significant?
2.6.12
[root]# hdparm -t /dev/sdc
Timing buffered disk reads: 174 MB in 3.03 seconds = 57.44 MB/sec
2.6.14-rc2
[root]# hdparm -t /dev/sdc
Timing buffered disk reads: 8 MB in 3.16 seconds = 2.53 MB/sec
Partial boot log with 2.6.14-rc2:
Fusion MPT base driver 3.03.02
Copyright (c) 1999-2005 LSI Logic Corporation
Fusion MPT SPI Host driver 3.03.02
GSI 28 (level, low) -> CPU 0 (0xc618) vector 49
ACPI: PCI Interrupt 0000:06:02.0[A] -> GSI 28 (level, low) -> IRQ 49
mptbase: Initiating ioc0 bringup
ioc0: 53C1030: Capabilities={Initiator}
scsi0 : ioc0: LSI53C1030, FwRev=01030a00h, Ports=1, MaxQ=255, IRQ=49
Vendor: MAXTOR Model: ATLAS10K3_18_SCA Rev: B000
Type: Direct-Access ANSI SCSI revision: 03
SCSI device sda: 35916548 512-byte hdwr sectors (18389 MB)
SCSI device sda: drive cache: write back
SCSI device sda: 35916548 512-byte hdwr sectors (18389 MB)
SCSI device sda: drive cache: write back
sda: sda1 sda2 sda3
Attached scsi disk sda at scsi0, channel 0, id 0, lun 0
Vendor: QUANTUM Model: ATLAS IV 9 SCA Rev: 0B0B
Type: Direct-Access ANSI SCSI revision: 03
SCSI device sdb: 17942584 512-byte hdwr sectors (9187 MB)
SCSI device sdb: drive cache: write back
SCSI device sdb: 17942584 512-byte hdwr sectors (9187 MB)
SCSI device sdb: drive cache: write back
sdb: sdb1
Attached scsi disk sdb at scsi0, channel 0, id 1, lun 0
Vendor: SEAGATE Model: ST336752LC Rev: 0004
Type: Direct-Access ANSI SCSI revision: 03
SCSI device sdc: 71687369 512-byte hdwr sectors (36704 MB)
SCSI device sdc: drive cache: write back
SCSI device sdc: 71687369 512-byte hdwr sectors (36704 MB)
SCSI device sdc: drive cache: write back
sdc: sdc1 sdc2
Attached scsi disk sdc at scsi0, channel 0, id 2, lun 0
Vendor: ESG-SHV Model: SCA HSBP M17 Rev: 1.0D
Type: Processor ANSI SCSI revision: 02
GSI 29 (level, low) -> CPU 3 (0xc018) vector 50
ACPI: PCI Interrupt 0000:06:02.1[B] -> GSI 29 (level, low) -> IRQ 50
mptbase: Initiating ioc1 bringup
mptscsih: ioc0: DV: Release failed. id 0<6>ioc1: 53C1030: Capabilities={Initiator}
scsi1 : ioc1: LSI53C1030, FwRev=01030a00h, Ports=1, MaxQ=255, IRQ=50
next reply other threads:[~2005-09-29 18:59 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-09-29 18:59 Chen, Kenneth W [this message]
[not found] <B05667366EE6204181EABE9C1B1C0EB50484F7D4@scsmsx401.amr.corp.intel.com>
2005-10-01 0:27 ` mpt fusion driver performance issue in 2.6.14-rc2 Chen, Kenneth W
2005-10-01 6:19 ` Moore, Eric Moore
2005-10-12 1:10 ` Chen, Kenneth W
-- strict thread matches above, loose matches on Subject: below --
2005-10-12 20:57 Moore, Eric Dean
2005-10-12 21:05 ` Chen, Kenneth W
2005-10-14 0:07 Moore, Eric Dean
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