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SubjectRe: 2.4.14-pre6
On Wed, Oct 31, 2001 at 12:00:00AM -0800, Linus Torvalds wrote:
>
> Incredibly, I didn't get a _single_ bugreport about the fact that I had
> forgotten to change the version number in pre5. Usually that's everybody's
> favourite bug.. Is everybody asleep on the lists?

I noticed but I thought everybody else would complain :-)

[...]

> The MM has calmed down, but the OOM killer didn't use to work. Now it
> does, with heurstics that are so incredibly simple that it's almost
> embarrassing.
>
> And I dare anybody to break those OOM heuristics - either by not
> triggering when they should, or by triggering too early. You'll get an
> honourable mention if you can break them and tell me how ("Honourable
> mention"? Yeah, I'm cheap. What else is new?)
>
> In fact, I'd _really_ like to know of any VM loads that show bad
> behaviour. If you have a pet peeve about the VM, now is the time to speak
> up. Because otherwise I think I'm done.

I did my usual kernel compile testings and here are the resuls:

j25 j50 j75 j100

2.4.13-pre5aa1: 5:02.63 5:09.18 5:26.27 5:34.36
2.4.13-pre5aa1: 4:58.80 5:12.30 5:26.23 5:32.14
2.4.13-pre5aa1: 4:57.66 5:11.29 5:45.90 6:03.53
2.4.13-pre5aa1: 4:58.39 5:13.10 5:29.32 5:44.49
2.4.13-pre5aa1: 4:57.93 5:09.76 5:24.76 5:26.79

2.4.14-pre6: 4:58.88 5:16.68 5:45.93 7:16.56
2.4.14-pre6: 4:55.72 5:34.65 5:57.94 6:50.58
2.4.14-pre6: 4:59.46 5:16.88 6:25.83 6:51.43
2.4.14-pre6: 4:56.38 5:18.88 6:15.97 6:31.72
2.4.14-pre6: 4:55.79 5:17.47 6:00.23 6:44.85

2.4.14-pre7: 4:56.39 5:22.84 6:09.05 9:56.59
2.4.14-pre7: 4:56.55 5:25.15 7:01.37 7:03.74
2.4.14-pre7: 4:59.44 5:15.10 6:06.78 12:51.39*
2.4.14-pre7: 4:58.07 5:30.55 6:15.37 *
2.4.14-pre7: 4:58.17 5:26.80 6:41.44 *


The last three of the runs of make -j100 with -pre7 failed since some
processes (portmap and cc1) were killed. So the oom killer seems to
kill (in case of portmap) the wrong processes and might trigger a little
too early. I have no data about the swap / mem usage at that time since
the script runs unattended.

Otherwise -pre5aa1 still seems to be the fastest kernel *in this test*.

I have not checked about the interactivity issues so this might be a
*feature*.


Regards,

Jogi

--

Well, yeah ... I suppose there's no point in getting greedy, is there?

<< Calvin & Hobbes >>
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