Re: [PATCH v2] Fix hardware IRQ time accounting problem.
Frederik Himpe <[email protected]>
| Newsgroups | gmane.linux.kernel,gmane.linux.ports.ppc64.devel,gmane.linux.usb.devel |
|---|---|
| Message-ID | <[email protected]> |
On Tue, 04 Dec 2007 16:51:44 +1100, Tony Breeds wrote: > The commit fa13a5a1f25f671d084d8884be96fc48d9b68275 (sched: restore > deterministic CPU accounting on powerpc), unconditionally calls > update_process_tick() in system context. In the deterministic > accounting case this is the correct thing to do. However, in the > non-deterministic accounting case we need to not do this, and results in > the time accounted as hardware irq time being artificially elevated. > > Also this patch collapses 2 consecutive '#ifdef > CONFIG_VIRT_CPU_ACCOUNTING' checks in time.h into one for neatness. I can confirm this patch fixed the problem for me. Thank you! -- Frederik Himpe -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/