--- Jens Axboe <[email protected]> wrote:
> Journalled file systems will behave worse for this, because it has to
> tend to the journal as well. Can you try mounting that partition as ext2
> and see what numbers that gives you?
I did the tests again on a partition that I could mkfs/mount at will.
On ext3, I get about 33 seconds average latency.
And on ext2, as predicted, I have latencies in average of about 0.4 seconds.
I also tried reiserfs, and it gets about 22 seconds latency.
As you pointed out, it seems that there is a flow in the way IO queues and
journals (that are in some ways queues as well), interact in the presence of
flushes.
Nicolas
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
