LAN板とソレ以外の日々

動作テストヽ(´ー｀)ノ

[root@DURON-PC root]# hdparm -c1d1 -X69 -ftT /dev/hde

/dev/hde:
 setting 32-bit IO_support flag to 1
 setting using_dma to 1 (on)
 setting xfermode to 69 (UltraDMA mode5)
 IO_support   =  1 (32-bit)
 using_dma    =  1 (on)
 Timing buffer-cache reads:   128 MB in  0.64 seconds =200.00 MB/sec
 Timing buffered disk reads:  64 MB in  2.20 seconds = 29.09 MB/sec
[root@DURON-PC root]# hdparm -c1d1 -ftT /dev/hda

/dev/hda:
 setting 32-bit IO_support flag to 1
 setting using_dma to 1 (on)
 IO_support   =  1 (32-bit)
 using_dma    =  1 (on)
 Timing buffer-cache reads:   128 MB in  0.60 seconds =213.33 MB/sec
 Timing buffered disk reads:  64 MB in  1.16 seconds = 55.17 MB/sec
[root@DURON-PC root]#

あんまり速くないな…というか半分かよ(;´Д`) と思ったら

hde: sata_error = 0x00000000, watchdog = 0, siimage_mmio_ide_dma_test_irq
hde: sata_error = 0x00000000, watchdog = 0, siimage_mmio_ide_dma_test_irq
hde: sata_error = 0x00000000, watchdog = 0, siimage_mmio_ide_dma_test_irq
hde: sata_error = 0x00000000, watchdog = 0, siimage_mmio_ide_dma_test_irq
hde: sata_error = 0x00000000, watchdog = 0, siimage_mmio_ide_dma_test_irq

とか吐きまくり。ドライバにバグある？
該当部分のコード drivers/ide/pci/siimage.c

                        watchdog = (sata_error & 0x00680000) ? 1 : 0;
#if 1
                        printk(KERN_WARNING "%s: sata_error = 0x%08x, "
                                "watchdog = %d, %s\n",
                                drive->name, sata_error, watchdog,
                                __FUNCTION__);
#endif

                } else {

ということで、 sata_error = 0 のときは出力しないように書き換えて逃げ(;´Д`)

[root@DURON-PC root]# hdparm -d1c1 -X69 -ftT /dev/hde

/dev/hde:
 setting 32-bit IO_support flag to 1
 setting using_dma to 1 (on)
 setting xfermode to 69 (UltraDMA mode5)
 IO_support   =  1 (32-bit)
 using_dma    =  1 (on)
 Timing buffer-cache reads:   128 MB in  0.64 seconds =200.00 MB/sec
 Timing buffered disk reads:  64 MB in  1.86 seconds = 34.41 MB/sec

チョットは速くなったけど、相変わらず遅い。捨てるか。この板(;´Д`) Posted by minemaz at 2004年12月04日 08:42