From mboxrd@z Thu Jan 1 00:00:00 1970 From: Denys Dmytriyenko Subject: Re: sata_sil24 stability and performance Date: Wed, 05 Mar 2008 23:14:54 -0500 Message-ID: <20080306041454.GA7242@denix.org> References: <20080219020916.GA29902@denix.org> <20080219043659.GA11936@jim.sh> <47BAF677.5000602@rtr.ca> <20080302061453.GA7291@denix.org> <005d01c87c4c$0d01f550$4d0fa8c0@M2007> <47CC9197.9050609@gmail.com> <20080304002215.GA13317@denix.org> <47CCC1C6.5010600@gmail.com> <20080304062942.GA14335@denix.org> <47CE55B3.6070701@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from vms048pub.verizon.net ([206.46.252.48]:49262 "EHLO vms048pub.verizon.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754162AbYCFEPP (ORCPT ); Wed, 5 Mar 2008 23:15:15 -0500 Received: from gandalf.denix.org ([71.126.188.25]) by vms048.mailsrvcs.net (Sun Java System Messaging Server 6.2-6.01 (built Apr 3 2006)) with ESMTPA id <0JXA0081AJSUP6Q1@vms048.mailsrvcs.net> for linux-ide@vger.kernel.org; Wed, 05 Mar 2008 22:14:55 -0600 (CST) In-reply-to: <47CE55B3.6070701@gmail.com> Content-disposition: inline Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Tejun Heo Cc: Gabor FUNK , linux-ide@vger.kernel.org, Jim Paris , Mark Lord On Wed, Mar 05, 2008 at 05:11:31PM +0900, Tejun Heo wrote: > That's the drive rejecting acoustic setting command probably because the > drive doesn't support it. Nothing to worry about. More recent kernels > won't whine about those anymore. Oh, thanks. I forgot that I tried to change acoustic setting. > > # dd if=/dev/zero of=file bs=100M count=20 > > 20+0 records in > > 20+0 records out > > 2097152000 bytes (2.1 GB) copied, 117.053 s, 17.9 MB/s > > > > # dd if=file of=file1 bs=100M count=20 > > 20+0 records in > > 20+0 records out > > 2097152000 bytes (2.1 GB) copied, 161.721 s, 13.0 MB/s > > Write seems awfully sluggish. Does turning off NCQ help? You can turn > off NCQ by echoing 1 to /sys/block/sdX/device/queue_depth. Also, which > kernel is this test result from? Turning off NCQ does not help. I am currently on 2.6.23.9, but I just tried 2.6.25-rc4 and it is the same. > > A similar drive in an ICH7 box shows more consistent results: > > > > # hdparm -t /dev/sda > > > > /dev/sda: > > Timing buffered disk reads: 182 MB in 3.01 seconds = 60.48 MB/sec > > > > # dd if=/dev/zero of=file bs=100M count=100 > > 100+0 records in > > 100+0 records out > > 10485760000 bytes (10 GB) copied, 242.908 s, 43.2 MB/s > > > > # dd if=file of=/dev/null bs=100M count=100 > > 100+0 records in > > 100+0 records out > > 10485760000 bytes (10 GB) copied, 211.132 s, 49.7 MB/s > > Hmmm... indeed. Same kernel version? Can you post "hdparm -I" results > of both drives? The kernel on the second box is also 2.6.23.9. Here are hdparm results for identical drives: 1. Connected to SiI 3124/sata_sil24 w/ slow write: # hdparm -I /dev/sda /dev/sda: ATA device, with non-removable media Model Number: WDC WD1600JS-75NCB1 Serial Number: WD-WCANM1344866 Firmware Revision: 10.02E01 Standards: Supported: 7 6 5 4 Likely used: 7 Configuration: Logical max current cylinders 16383 16383 heads 16 16 sectors/track 63 63 -- CHS current addressable sectors: 16514064 LBA user addressable sectors: 268435455 LBA48 user addressable sectors: 312500000 device size with M = 1024*1024: 152587 MBytes device size with M = 1000*1000: 160000 MBytes (160 GB) Capabilities: LBA, IORDY(can be disabled) Queue depth: 32 Standby timer values: spec'd by Standard, with device specific minimum R/W multiple sector transfer: Max = 16 Current = 16 Recommended acoustic management value: 128, current value: 128 DMA: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 udma4 *udma5 udma6 Cycle time: min=120ns recommended=120ns PIO: pio0 pio1 pio2 pio3 pio4 Cycle time: no flow control=120ns IORDY flow control=120ns Commands/features: Enabled Supported: * SMART feature set Security Mode feature set * Power Management feature set * Write cache * Look-ahead * Host Protected Area feature set * WRITE_BUFFER command * READ_BUFFER command * NOP cmd * DOWNLOAD_MICROCODE SET_MAX security extension * Automatic Acoustic Management feature set * 48-bit Address feature set * Device Configuration Overlay feature set * Mandatory FLUSH_CACHE * FLUSH_CACHE_EXT * SMART error logging * SMART self-test * General Purpose Logging feature set * SATA-I signaling speed (1.5Gb/s) * SATA-II signaling speed (3.0Gb/s) * Native Command Queueing (NCQ) * Host-initiated interface power management * Phy event counters DMA Setup Auto-Activate optimization Device-initiated interface power management * Software settings preservation * SMART Command Transport (SCT) feature set * SCT Long Sector Access (AC1) * SCT LBA Segment Access (AC2) * SCT Error Recovery Control (AC3) * SCT Features Control (AC4) * SCT Data Tables (AC5) unknown 206[12] Security: supported not enabled not locked not frozen not expired: security count not supported: enhanced erase Checksum: correct 2. Connected to ICH7/ata_piix w/ normal write: # hdparm -I /dev/sda /dev/sda: ATA device, with non-removable media Model Number: WDC WD1600JS-75NCB1 Serial Number: WD-WCANM1356774 Firmware Revision: 10.02E01 Standards: Supported: 7 6 5 4 Likely used: 7 Configuration: Logical max current cylinders 16383 16383 heads 16 16 sectors/track 63 63 -- CHS current addressable sectors: 16514064 LBA user addressable sectors: 268435455 LBA48 user addressable sectors: 312500000 device size with M = 1024*1024: 152587 MBytes device size with M = 1000*1000: 160000 MBytes (160 GB) Capabilities: LBA, IORDY(can be disabled) Queue depth: 32 Standby timer values: spec'd by Standard, with device specific minimum R/W multiple sector transfer: Max = 16 Current = 16 Recommended acoustic management value: 128, current value: 254 DMA: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 udma4 udma5 *udma6 Cycle time: min=120ns recommended=120ns PIO: pio0 pio1 pio2 pio3 pio4 Cycle time: no flow control=120ns IORDY flow control=120ns Commands/features: Enabled Supported: * SMART feature set Security Mode feature set * Power Management feature set * Write cache * Look-ahead * Host Protected Area feature set * WRITE_BUFFER command * READ_BUFFER command * NOP cmd * DOWNLOAD_MICROCODE SET_MAX security extension * Automatic Acoustic Management feature set * 48-bit Address feature set * Device Configuration Overlay feature set * Mandatory FLUSH_CACHE * FLUSH_CACHE_EXT * SMART error logging * SMART self-test * General Purpose Logging feature set * SATA-I signaling speed (1.5Gb/s) * SATA-II signaling speed (3.0Gb/s) * Native Command Queueing (NCQ) * Host-initiated interface power management * Phy event counters DMA Setup Auto-Activate optimization Device-initiated interface power management * Software settings preservation * SMART Command Transport (SCT) feature set * SCT Long Sector Access (AC1) * SCT LBA Segment Access (AC2) * SCT Error Recovery Control (AC3) * SCT Features Control (AC4) * SCT Data Tables (AC5) unknown 206[12] Security: supported not enabled not locked frozen not expired: security count not supported: enhanced erase Checksum: correct Also, few months ago instead of sata_sil24 I had my drives connected to sata_mv (Supermicro 8-port) and performance was normal... Thank you for your time. Please let me know what else to try. Regards, Denys