Date: Fri, 30 Jun 2000 16:29:56 -0400 (EDT) From: John Ioannidis <ji@research.att.com> To: freebsd-bugs@freebsd.org Subject: swapper process accumulating time in 4.0-STABLE with NO_SWAPPING Message-ID: <200006302029.QAA29869@bual.research.att.com>
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I'm running a 4.0-STABLE kernel with options NO_SWAPPING, yet after
less than three days of uptime, the swapper has accumulated 14 seconds of
CPU time. Where is this coming from? Why is there a swapper process even
running? Observe:
$ strings /kernel | grep ^___ | grep SWAP
___options NO_SWAPPING
$ uptime
4:26PM up 2 days, 21:20, 6 users, load averages: 0.07, 0.04, 0.00
$ ps alx | grep swapper
0 0 0 0 -18 0 0 0 sched DLs ?? 0:00.14 (swapper)
$ sysctl -a | grep swap
vm.swap_enabled: 0
vm.swap_async_max: 4
vm.stats.vm.v_swapin: 0
vm.stats.vm.v_swapout: 0
vm.stats.vm.v_swappgsin: 0
vm.stats.vm.v_swappgsout: 0
vm.swap_idle_enabled: 0
vm.defer_swapspace_pageouts: 0
vm.disable_swapspace_pageouts: 0
vfs.nfs.diskless_swappath:
If we're not swapping, why does the swapper thread have to run at all?
/ji
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