2008/4/28 Andrea Gozzi <[EMAIL PROTECTED]>: > On Sun, 2008-04-27 at 18:25 +0300, Dotan Cohen wrote: > > Where should I begin troubleshooting? > > Run "top" and check for processes waiting to do I/O on disks. > Also, check your hdparm settings since having DMA/UDMA disables makes > reads A LOT slower > > Andrea >
Thanks. Top doesn't show anything excessive, and it looks like DMA is the culprit: [EMAIL PROTECTED]:~$ sudo hdparm /dev/sda [sudo] password for hardy: /dev/sda: IO_support = 0 (default) 16-bit) HDIO_GET_UNMASKINTR failed: Inappropriate ioctl for device HDIO_GET_DMA failed: Inappropriate ioctl for device HDIO_GET_KEEPSETTINGS failed: Inappropriate ioctl for device readonly = 0 (off) readahead = 256 (on) geometry = 9729/255/63, sectors = 156301488, start = 0 [EMAIL PROTECTED]:~$ sudo hdparm -d1 /dev/sda /dev/sda: setting using_dma to 1 (on) HDIO_SET_DMA failed: Inappropriate ioctl for device HDIO_GET_DMA failed: Inappropriate ioctl for device [EMAIL PROTECTED]:~$ sudo hdparm /dev/sda /dev/sda: IO_support = 0 (default) 16-bit) HDIO_GET_UNMASKINTR failed: Inappropriate ioctl for device HDIO_GET_DMA failed: Inappropriate ioctl for device HDIO_GET_KEEPSETTINGS failed: Inappropriate ioctl for device readonly = 0 (off) readahead = 256 (on) geometry = 9729/255/63, sectors = 156301488, start = 0 [EMAIL PROTECTED]:~$ What can I do to remedy that? Dotan Cohen http://what-is-what.com http://gibberish.co.il א-ב-ג-ד-ה-ו-ז-ח-ט-י-ך-כ-ל-ם-מ-ן-נ-ס-ע-ף-פ-ץ-צ-ק-ר-ש-ת A: Because it messes up the order in which people normally read text. Q: Why is top-posting such a bad thing?
