Date: Tue, 20 Mar 2001 12:49:38 -0600 From: "Michael C . Wu" <keichii@iteration.net> To: Matt Dillon <dillon@earth.backplane.com> Cc: "Michael C . Wu" <keichii@iteration.net>, izero@ms26.hinet.net, cross@math.psu.edu, Alfred Perlstein <bright@wintelcom.net>, grog@FreeBSD.ORG, fs@FreeBSD.ORG, hackers@FreeBSD.ORG Subject: Re: tuning a VERY heavily (30.0) loaded scerver Message-ID: <20010320124938.H52586@peorth.iteration.net> In-Reply-To: <200103201838.f2KIcZP95379@earth.backplane.com>; from dillon@earth.backplane.com on Tue, Mar 20, 2001 at 10:38:35AM -0800 References: <20010320111144.A51924@peorth.iteration.net> <20010320092717.R29888@fw.wintelcom.net> <20010320113818.B52586@peorth.iteration.net> <20010320120112.C52586@peorth.iteration.net> <200103201815.f2KIFR594803@earth.backplane.com> <20010320122350.F52586@peorth.iteration.net> <200103201838.f2KIcZP95379@earth.backplane.com>
next in thread | previous in thread | raw e-mail | index | archive | help
On Tue, Mar 20, 2001 at 10:38:35AM -0800, Matt Dillon scribbled: | | :| How big is 'lots'? If the shared memory segment is smallish, e.g. | :| less then 64MB, you should be ok. If it is larger then you will | :| have to do some kernel tuning to avoid running out of pmap entries. | : | :This is exactly what happens to us sometimes. We run out of pmap entries. :) | :But what can we tune? | sysctl -w kern.ipc.shm_use_phys=1 | | (run prior to creating the initial shared memory segment, e.g. when | the machine is booted). | | That should solve the pv entry problem. What Alfred said in regards | to 'sysctl -a' crashing too... We'll fix it if you give us a | traceback! Yes. I promised a trace for public and dump if you want. But there is no one at the NOC now. So it will have to be tomorrow night. We will take the box down at peak load to better help you guys. :) -- +-----------------------------------------------------------+ | keichii@iteration.net | keichii@freebsd.org | | http://iteration.net/~keichii | Yes, BSD is a conspiracy. | +-----------------------------------------------------------+ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20010320124938.H52586>