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Gentoo's Bugzilla – Attachment 145054 Details for
Bug 203826
HPPA machine with HIL slow with kernel built from sys-kernel/gentoo-sources-2.6.23-r3 or sys-kernel/vanilla-sources-2.6.23.9
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[patch]
Set nice level of 15 to ksoftirq when HP_MLC is set
HIL-ksoftirqd-nice-level.patch (text/plain), 590 bytes, created by
Guy Martin (RETIRED)
on 2008-03-01 22:41:21 UTC
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Description:
Set nice level of 15 to ksoftirq when HP_MLC is set
Filename:
MIME Type:
Creator:
Guy Martin (RETIRED)
Created:
2008-03-01 22:41:21 UTC
Size:
590 bytes
patch
obsolete
>diff -uNr linux-2.6.23-gentoo-r8.orig/kernel/softirq.c linux-2.6.23-gentoo-r8/kernel/softirq.c >--- linux-2.6.23-gentoo-r8.orig/kernel/softirq.c 2008-03-01 14:44:15.000000000 +0100 >+++ linux-2.6.23-gentoo-r8/kernel/softirq.c 2008-03-01 14:50:18.000000000 +0100 >@@ -597,6 +597,10 @@ > printk("ksoftirqd for %i failed\n", hotcpu); > return NOTIFY_BAD; > } >+#ifdef CONFIG_HIL_MLC >+ // When using HIL, ksoftirqd takes too much CPU so we reduce the nice level >+ set_user_nice(p, 15); >+#endif /* CONFIG_HIL_MLC */ > kthread_bind(p, hotcpu); > per_cpu(ksoftirqd, hotcpu) = p; > break;
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bug 203826
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139666
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139667
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139668
| 145054