[gentoo-user] Re: swap usage creeping up
On 11/04/2010 11:45 PM, Iain Buchanan wrote: OK so vm.swappiness seemed to help a bit but today I notice that swap usage is up again. It's firefox: PID USER PR NI VIRT RES SHR S %CPU %MEMTIME+ COMMAND 14072 iain 20 0 1369m 897m 15m S3 29.5 113:14.91 firefox I think that's 1.3Gb + 900Mb... sounds like a memory leak to me. Anyone else run firefox for 113+ hours? I'm using 3.6.9-r1. firefox is up to 3.6.12 now, with several important bug fixes, so I'd suggest updating it.
[gentoo-user] Re: swap usage creeping up
Iain Buchanan iaindb at netspace.net.au writes: over the last week or so I've noticed unusually large swap usage. I usually hibernate this laptop and have uptimes up to 12 days so apps can run for a long time. Hello Iain, From a hardware guy; If you really need hibernate, use it. No laptop was designed to stay powered on continuously despite the features in software and hardware. The system will collect more dust internally than if powered up and down. Heat is EVIL on electronics no matter what you do. Power consumption minimization (at this point in time) is still quite young and there are all kinds of non published issues with all sorts of memory and chips. Fans do not have the mtbf rates any where near what the published times are for processors. I could go on and on, but you get the point If you need hibernate, use it. If you do not, your hardware will last longer being powered down. Don't just hibernate or allow other users to do it, just because they are lazy. Several efforts are bearing fruit for fast (parallel) boot these days. hth, James
Re: [gentoo-user] Re: swap usage creeping up
On Thu, 2010-10-28 at 16:13 +, James wrote: Hello Iain, hey :) From a hardware guy; If you really need hibernate, use it. No laptop was designed to stay powered on continuously despite the features in software and hardware. [snip] If you need hibernate, use it. If you do not, your hardware will last longer being powered down. [snip] er, hibernate IS powering down. S3 powers off everything (Disks, CPU, fans) but leaves a minimal amount of power to the solid-state no-moveable-parts RAM. S4 writes a bunch of stuff to disks and then powers down just like a normal shut down (S5). You can even take out the battery (I even stripped an old laptop, removed the cpu, disks, heat pipes, fans, and put it all back together on S4 and then resumed). S4 can leave some bios function and power for WOL and other devices, but it's not essential. In fact S5 which every modern ATX computer does STILL leaves power to USB, WOL, modems keyboards, if required. So when I say 12 day uptimes, this is calculated by the kernel since I last rebooted, not since I last hibernated. I'm not actually running the laptop for 12 days continuously. Although, IMHO, there's no difference to a laptop or desktop in this regard. Push it to the limits I say ;) -- Iain Buchanan iaindb at netspace dot net dot au serendipity, n.: The process by which human knowledge is advanced.
