Trond Myklebust wrote:
>
> >>>>> " " == Adam J Richter <adam@yggdrasil.com> writes:
>
> > When I do anything that causes a lot of I/O to the IDE
> > hard disk on a computer running 2.3.99-pre6, the system becomes
> > very unresponsive. I often have to wait a couple of seconds
> > for characters to echo on xterm windows, for example.
> > 2.3.99pre6-5 did not have this problem. I did not try
> > 2.3.99pre6-6 or 2.3.99pre6-7, so the problem could have been
> > introduced at that point too.
>
> > I have verified that the problem is triggered by IO rather
> > than CPU utilization.
>
> Does the following cure it?
>
> Cheers,
> Trond
>
> --- linux-2.3.99-pre6/fs/buffer.c Wed Apr 26 02:28:55 2000
> +++ linux-2.3.99-pre6-devel/fs/buffer.c Thu Apr 27 13:27:52 2000
> @@ -2417,7 +2417,8 @@
>
> int block_sync_page(struct page *page)
> {
> - run_task_queue(&tq_disk);
> + if (!Page_Uptodate(page))
> + run_task_queue(&tq_disk);
> return 0;
> }
hello,
doesn`t help. The last kernel with normal I/O-behaviour is pre-6-7. pre6
as well as pre-6-7+the patch van Riel posted yesterday behave more than
strange when running
a "bonnie -s 300". Performance-Breakdown starts just when memory becomes
short and the new
VM-code starts to work preventing the system effectivly from writing to
disk
regards
joerg
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This archive was generated by hypermail 2b29 : Sun Apr 30 2000 - 21:00:13 EST