Date: Tue, 19 Nov 2013 23:01:37 +0000 From: Mark Robert Vaughan Murray <markm@FreeBSD.org> To: =?utf-8?Q?Stanis=C5=82aw_Halik?= <sthalik@misaki.pl> Cc: current@freebsd.org Subject: Re: random_harvestq eats much on geode-lx alix2c3 Message-ID: <C33F6708-0FA5-4AC3-90BD-807B27FE264C@FreeBSD.org> In-Reply-To: <4041856.BpQXZdSKfK@aurora> References: <4041856.BpQXZdSKfK@aurora>
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[-- Attachment #1 --] On 19 Nov 2013, at 00:22, Stanisław Halik <sthalik@misaki.pl> wrote: > Hey, > > random_harvestq eats much, much CPU on alix2c3: > > CPU: Geode(TM) Integrated Processor by AMD PCS (498.06-MHz 586-class CPU) > glxsb0: <AMD Geode LX Security Block (AES-128-CBC, RNG)> mem > 0xefff4000-0xefff7fff irq 9 at device 1.2 on pci0 > > Could you please add a sysctl/loader knob for it, or a way to throttle > collection? > > Here's top output: > > 14 root 1 -16 - 0K 8K - 6:12 15.97% rand_harvestq Take a look at random(4) - sysctls to turn off harvesting are documented there. That is quite a busy harvestq - could you please give me some more details of what that box is and what it was doing at the time (numbers would be good!) Thanks! M -- Mark R V Murray [-- Attachment #2 --] -----BEGIN PGP SIGNATURE----- Version: GnuPG/MacGPG2 v2.0.22 (Darwin) Comment: GPGTools - http://gpgtools.org iQCVAwUBUovt1d58vKOKE6LNAQreBQP9FD46iCOXTt6SXwuCH5NKPYuqevu0kWy4 kT0IeQbbvdGh89Yq84RxyerQiqXlW4TFhiixs0ApVbjCuj29LGMEZn655Q7vn1QG ZqtHUNNJ9JhEisVdtohpIeSBlPxu0ss78ozVgN5+808NYA6ckSxjaoPTivIHbMae xxWKwuQnHAg= =5BqU -----END PGP SIGNATURE-----help
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