On Mon, 22 Feb 2010 20:05:22 +0100 Jens Axboe <jens.axboe@xxxxxxxxxx> wrote: > On Mon, Feb 22 2010, Benjamin S. wrote: > > > > Without that patch my SSD (Super Talent Ultradrive GX MLC 64GB) > > reaches about 200MB/s sequentiell read. After applying the patch it > > reaches only 70MB/s. > > That's not good. Can you send me the dmesg snippet that includes the > drive detection? [ 0.819456] libata version 3.00 loaded. [ 1.230215] ahci 0000:00:1f.2: version 3.0 [ 1.230225] ahci 0000:00:1f.2: PCI INT B -> GSI 19 (level, low) -> IRQ 19 [ 1.230305] ahci 0000:00:1f.2: irq 27 for MSI/MSI-X [ 1.246141] ahci 0000:00:1f.2: AHCI 0001.0300 32 slots 6 ports 3 Gbps 0x3f impl SATA mode [ 1.246223] ahci 0000:00:1f.2: flags: 64bit ncq sntf ilck pm led clo pio slum part ems sxs apst [ 1.248282] ahci 0000:00:1f.2: setting latency timer to 64 [ 1.286038] scsi0 : ahci [ 1.286146] scsi1 : ahci [ 1.286222] scsi2 : ahci [ 1.286301] scsi3 : ahci [ 1.286378] scsi4 : ahci [ 1.286455] scsi5 : ahci [ 1.286607] ata1: SATA max UDMA/133 abar m2048@0xfe425000 port 0xfe425100 irq 27 [ 1.286682] ata2: SATA max UDMA/133 abar m2048@0xfe425000 port 0xfe425180 irq 27 [ 1.286756] ata3: SATA max UDMA/133 abar m2048@0xfe425000 port 0xfe425200 irq 27 [ 1.286830] ata4: SATA max UDMA/133 abar m2048@0xfe425000 port 0xfe425280 irq 27 [ 1.286905] ata5: SATA max UDMA/133 abar m2048@0xfe425000 port 0xfe425300 irq 27 [ 1.286979] ata6: SATA max UDMA/133 abar m2048@0xfe425000 port 0xfe425380 irq 27 [ 1.608041] ata3: SATA link down (SStatus 0 SControl 300) [ 1.608113] ata2: SATA link up 3.0 Gbps (SStatus 123 SControl 300) [ 1.608180] ata1: SATA link up 3.0 Gbps (SStatus 123 SControl 300) [ 1.608396] ata5: SATA link down (SStatus 0 SControl 300) [ 1.608400] ata6: SATA link down (SStatus 0 SControl 300) [ 1.608416] ata1.00: ATA-8: STT_FTM64GX25H, 1819, max UDMA/133 [ 1.608421] ata1.00: 125045424 sectors, multi 1: LBA48 NCQ (depth 31/32), AA [ 1.608429] ata4: SATA link down (SStatus 0 SControl 300) [ 1.608932] ata2.00: HPA detected: current 1250261615, native 1250263728 [ 1.609058] ata2.00: ATA-8: WDC WD6400AAKS-00A7B0, 01.03B01, max UDMA/133 [ 1.609117] ata2.00: 1250261615 sectors, multi 16: LBA48 NCQ (depth 31/32), AA [ 1.610116] ata2.00: configured for UDMA/133 [ 1.610342] ata1.00: configured for UDMA/133 [ 1.624077] scsi 0:0:0:0: Direct-Access ATA STT_FTM64GX25H 1819 PQ: 0 ANSI: 5 [ 1.624246] scsi 1:0:0:0: Direct-Access ATA WDC WD6400AAKS-0 01.0 PQ: 0 ANSI: 5 [ 1.626840] sd 0:0:0:0: [sda] 125045424 512-byte logical blocks: (64.0 GB/59.6 GiB) [ 1.626905] sd 1:0:0:0: [sdb] 1250261615 512-byte logical blocks: (640 GB/596 GiB) [ 1.626929] sd 1:0:0:0: [sdb] Write Protect is off [ 1.626931] sd 1:0:0:0: [sdb] Mode Sense: 00 3a 00 00 [ 1.626941] sd 1:0:0:0: [sdb] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA [ 1.627009] sdb: [ 1.627143] sd 0:0:0:0: [sda] Write Protect is off [ 1.627229] sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00 [ 1.627238] sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA [ 1.627364] sda: sda1 sda2 < sda5 > [ 1.627978] sd 0:0:0:0: [sda] Attached SCSI disk [ 1.642051] sdb1 sdb2 sdb3 < sdb5 sdb6 sdb7 sdb8 -- To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
