On Tue, Feb 15, 2005 at 08:03:39PM +0300, E.Rodichev wrote: > On Tue, 15 Feb 2005, Magnus Hagander wrote: > >Question 1: Is your writeback cache really disabled in Linux, on the > >harddrive? Windows fsync will *write through the disk write cache* if > >the driver is properly implemented. AFAIK, on Linux if write cache is > >enabled on the drive, fsync will only get into the cache. > > Difficult to say concerning writeback cache... I have 2.6.10 without any > additional tuning, file system is ext2. From dmesg: > > hda: TOSHIBA MK8026GAX, ATA DISK drive > hda: max request size: 128KiB > hda: 156301488 sectors (80026 MB), CHS=65535/16/63, UDMA(100) > hda: cache flushes supported
Write caching is generally on by default with IDE drives. Disable it like so: hdparm -W 0 /dev/hda -Mike Adler ---------------------------(end of broadcast)--------------------------- TIP 1: subscribe and unsubscribe commands go to [EMAIL PROTECTED]
