Messages in this thread | | | Date | Fri, 2 Mar 2001 11:25:49 -0800 (PST) | From | Andre Hedrick <> |
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Okay I now have to create TCQ for ATA becasue I am not going to lose again now that I am winning ;-)
On Fri, 2 Mar 2001, Chris Mason wrote:
> > > On Friday, March 02, 2001 12:39:01 PM -0600 Steve Lord <lord@sgi.com> wrote: > > [ file_fsync syncs all dirty buffers on the FS ] > > > > So it looks like fsync is going to cost more for bigger devices. Given the > > O_SYNC changes Stephen Tweedie did, couldnt fsync look more like this: > > > > down(&inode->i_sem); > > filemap_fdatasync(ip->i_mapping); > > fsync_inode_buffers(ip); > > filemap_fdatawait(ip->i_mapping); > > up(&inode->i_sem); > > > > reiserfs might need to trigger a commit on fsync, so the fs specific fsync > op needs to be called. But, you should not need to call file_fsync in the > XFS fsync call (check out ext2's) > > For why ide is beating scsi in this benchmark...make sure tagged queueing > is on (or increase the queue length?). For the xlog.c test posted, I would > expect scsi to get faster than ide as the size of the write increases. > > -chris > > - > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ >
Andre Hedrick Linux ATA Development ASL Kernel Development ----------------------------------------------------------------------------- ASL, Inc. Toll free: 1-877-ASL-3535 1757 Houret Court Fax: 1-408-941-2071 Milpitas, CA 95035 Web: www.aslab.com
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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