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To: Ian Lepore <ian@FreeBSD.org>
Subject: Re: time issues and ZFS
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Comments: In-reply-to Ian Lepore <ian@FreeBSD.org>
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Date: Mon, 21 Jan 2013 17:35:16 +0200
From: Daniel Braniss <danny@cs.huji.ac.il>
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Cc: freebsd-stable@FreeBSD.org, Ronald Klop <ronald-freebsd8@klop.yi.org>
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...
> 
> What's the output of sysctl kern.eventtimer?  

kern.eventtimer.periodic is 0

>                                              Does the bad behavior
> change if you set kern.eventimer.periodic=1?
> 

setting kern.eventtimer.timer=LAPIC
instead of the default HPET made the missing cpu timers to appear:
# vmstat -i                         
interrupt                          total       rate
irq3: uart1                         1695          0
irq4: uart0                            5          0
irq19: ehci0                        3875          0
irq20: hpet0 uhci3               5495755       1135
irq21: uhci2 ehci1                    29          0
irq23: atapci0                        48          0
cpu0:timer                          7063          1
irq256: bce0                      117073         24
irq260: mfi0                       51083         10
irq261: mfi1                        3088          0
cpu1:timer                           484          0
cpu14:timer                           36          0
cpu6:timer                           486          0
cpu8:timer                            38          0
cpu5:timer                            38          0
cpu15:timer                           38          0
cpu7:timer                            32          0
cpu12:timer                           38          0
cpu3:timer                            40          0
cpu9:timer                            36          0
cpu10:timer                           34          0
cpu11:timer                           37          0
cpu2:timer                            33          0
cpu13:timer                           40          0
cpu4:timer                            36          0
Total                            5681160       1173

is this relevant?

danny




> -- Ian
> 
>