[Bug 239858] New: irqbalancer does not work as would have been expected.
https://bugzilla.novell.com/show_bug.cgi?id=239858 Summary: irqbalancer does not work as would have been expected. Product: openSUSE 10.2 Version: Final Platform: i586 OS/Version: Other Status: NEW Severity: Normal Priority: P5 - None Component: Basesystem AssignedTo: bnc-team-screening@forge.provo.novell.com ReportedBy: dieter.jurzitza@t-online.de QAContact: qa@suse.de The script /etc/init.d/irq_balancer checks for the number of physical processors ($PHYS) and the total number of processors ($PROC). The new dual core CPU's i.e. from Intel return PHYS = 1 and PROC = 2, as we have one IC containing two CPU's. The first line in "start" tests for $PHYS -gt 1 || $PROC -gt 1 -a $PHYS -eq 0. The latter seems meaningless to me as $PHYS will never ever be equal to 0. Therefore the script does not work on my system (dual core, but single IC). Please assign this bug to sf@suse.de as he did the last modifications on the rpm. Take care Dieter Jurzitza -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug, or are watching someone who is.
https://bugzilla.novell.com/show_bug.cgi?id=239858 mhorvath@novell.com changed: What |Removed |Added ---------------------------------------------------------------------------- AssignedTo|bnc-team- |stefan.fent@novell.com |screening@forge.provo.novell| |.com | -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug, or are watching someone who is.
https://bugzilla.novell.com/show_bug.cgi?id=239858 stefan.fent@novell.com changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |ASSIGNED -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug, or are watching someone who is.
https://bugzilla.novell.com/show_bug.cgi?id=239858 stefan.fent@novell.com changed: What |Removed |Added ---------------------------------------------------------------------------- AssignedTo|stefan.fent@novell.com |bwalle@novell.com Status|ASSIGNED |NEW -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug, or are watching someone who is.
https://bugzilla.novell.com/show_bug.cgi?id=239858 bwalle@novell.com changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution| |FIXED ------- Comment #1 from bwalle@novell.com 2007-05-22 02:48 MST ------- Should be fixed in 10.3, Alpha 4. Please re-test and re-open if still valid. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug, or are watching someone who is.
https://bugzilla.novell.com/show_bug.cgi?id=239858 ------- Comment #2 from dieter.jurzitza@t-online.de 2007-05-28 03:29 MST ------- Thanks for taking care. I grabbed, built and installed irqbalance-0.55-12 on SuSE 10.2 and it fixed the behaviour. No need to re-open, but would make sense to provide a fixed version for openSUSE10.2. Thanks again, take care Dieter Jurzitza -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug, or are watching someone who is.
https://bugzilla.novell.com/show_bug.cgi?id=239858 ------- Comment #3 from bwalle@novell.com 2007-05-28 03:44 MST ------- And what would be the real benefit of it? You cannot tell me that you encounter any performance difference on a dual core single socket system by balancing the interrupts, can you? -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug, or are watching someone who is.
https://bugzilla.novell.com/show_bug.cgi?id=239858 ------- Comment #4 from dieter.jurzitza@t-online.de 2007-05-29 12:23 MST ------- Dear Mr. Walle, maybe I am totally wrong, but: 1 have two physically separate processors sitting in one housing. They share the memory bus and other interfaces, nevertheless they are separate devices, partly even separate dice with separate cache and so on. Now, if I have two IRQ's pending I see no reason why CPU1 should not process IRQ Nr. 2 while CPU0 is busy with IRQ Nr. 1. Especially I see no difference to two CPU's in separate housings here - exept that the IRQ's go to two different pins of one physically identical IC housing instead of two different pins of two different IC housings. I never ever did performance comparisons between shared and non shared IRQ's. If one assumes sharing of IRQs beneficial - and hopefully noone would do this just because it's funny - I would guess that in the case of two CPUs in one housing the benefit should not differ from two CPUs sitting in two different housings. I'd expect a different story from "Hyperthreading" processors where the second CPU is a virtual one. I'd be glad if you'd kindly shed some light on what I've got wrong here (just in case), take care Dieter Jurzitza -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug, or are watching someone who is.
https://bugzilla.novell.com/show_bug.cgi?id=239858 ------- Comment #5 from bwalle@novell.com 2007-05-29 12:40 MST ------- (In reply to comment #4)
I'd be glad if you'd kindly shed some light on what I've got wrong here (just in case), take care
The bug is simply not critical enough for an online update. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug, or are watching someone who is.
https://bugzilla.novell.com/show_bug.cgi?id=239858 User pavel@novell.com added comment https://bugzilla.novell.com/show_bug.cgi?id=239858#c6 --- Comment #6 from Pavel Machek <pavel@novell.com> 2008-10-21 03:04:10 MDT --- Which rpm contains the fix? -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=239858 User bwalle@novell.com added comment https://bugzilla.novell.com/show_bug.cgi?id=239858#c7 --- Comment #7 from Bernhard Walle <bwalle@novell.com> 2008-10-21 12:53:37 MDT --- irqbalance -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
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