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Re: xmm2 - monitor Linux MM active/inactive lists graphically
Linus Torvalds <torvalds@transmeta.com> writes:
> On Fri, 26 Oct 2001, Linus Torvalds wrote:
> >
> > Attached is a very untested patch (but hey, it compiles, so it must work,
> > right?)
>
> And it actually does seem to.
>
> Zlatko, does this make a difference for your disk?
>
First, sorry for such a delay in answering, I was busy.
I compiled 2.4.14-pre3 as it seems to be identical to your p2p3 patch,
with regard to queue processing.
Unfortunately, things didn't change on my first disk (IBM 7200rpm
@home). I'm still getting low numbers, check the vmstat output at the
end of the email.
But, now I found something interesting, other two disk which are on
the standard IDE controller work correctly (writing is at 17-22
MB/sec). The disk which doesn't work well is on the HPT366 interface,
so that may be our culprit. Now I got the idea to check patches
retrogradely to see where it started behaving poorely.
Also, one more thing, I'm pretty sure that under strange circumstances
(specific alignment of stars) it behaves well (with appropriate
writing speed). I just haven't yet pinpointed what needs to be done to
get to that point.
I know I haven't supplied you with a lot of information, but I'll keep
investigating until I have some more solid data on the problem.
BTW, thank you and Jens for nice explanation of the numbers, very good
reading.
0 2 0 13208 2924 516 450716 0 0 0 11808 179 113 0 6 93
0 1 0 13208 2656 524 450964 0 0 0 8432 174 86 1 6 93
0 1 0 13208 3676 532 449924 0 0 0 8432 174 91 1 4 95
0 1 0 13208 3400 540 450172 0 0 0 8432 231 343 1 4 94
0 2 0 13208 3520 548 450036 0 0 0 8440 180 179 2 5 93
0 1 0 20216 3544 728 456976 32 0 32 8432 175 94 0 4 95
0 2 0 20212 3280 728 457232 0 0 0 8440 174 88 0 5 95
0 2 0 20208 3032 728 457480 0 0 0 8364 174 84 1 4 95
procs memory swap io system cpu
r b w swpd free buff cache si so bi bo in cs us sy id
0 2 0 20208 3412 732 457092 0 0 0 6964 175 111 0 4 96
0 2 0 20208 3272 728 457224 0 0 0 1216 207 89 0 1 99
0 2 0 20208 3164 728 457352 0 0 0 1300 256 77 1 2 97
0 2 1 20208 2928 732 457604 0 0 0 1444 283 77 1 0 99
0 2 1 20208 2764 732 457732 0 0 0 1316 278 73 1 1 98
0 2 1 20208 3420 728 457096 0 0 0 1652 273 117 0 1 99
0 2 1 20208 3180 732 457348 0 0 0 1404 240 90 0 0 99
0 2 1 20208 3696 728 456840 0 0 0 1784 247 80 0 1 98
0 2 1 20204 3432 728 457096 0 0 0 1404 237 77 1 0 99
0 2 1 20204 2896 732 457604 0 0 0 1672 255 77 1 1 98
0 1 0 20204 3284 728 457224 0 0 0 1976 257 112 0 2 98
0 1 0 20204 2772 728 457736 0 0 0 7628 260 100 0 4 96
0 1 0 20204 3540 728 456968 0 0 0 8492 178 83 1 4 95
0 2 0 20204 3584 736 456916 0 0 4 4848 175 88 0 2 97
Regards,
--
Zlatko
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