Messages in this thread | | | Date | Wed, 9 Apr 2008 15:57:48 +0200 | From | "Andreas Grimm" <> | Subject | Re: VM - a plenty of inactive memory |
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Hi Johannes,
i know this. But why the kernel locks that memory for a so long time (2 days now)? Is there a way to enforce the reclaiming? And how can i find out, which process owns that memory. The problem is, that i can't accept, that the free memory fell down to 50MB, when i have 24GB in the nirvana. The system was recently very close to the awkward situation to swap to disk, and i bet it will do so in the next few days, because it happened before. Unintelligible, if one got that much ram.
Bye, Andreas
2008/4/9, Johannes Weiner <hannes@saeurebad.de>: > Hi, > > > "Andreas Grimm" <agrimm61@gmail.com> writes: > > > Hello everybody, > > > > i got a weird problem with one of my servers. It's a Intel SR2500AL > > with 32GB of RAM. > > Looking at the memory usage of the system, something is going totally > > wrong. The crucial numbers from /proc/meminfo are: > > > > MemTotal: 33265916 kB > > MemFree: 416168 kB > > Inactive: 24630428 kB (24GB? whooaaa) > > > > Another system with only 16GB, same amount of users and load, shows a > > more normal behaviour: > > > > MemTotal: 16619808 kB > > MemFree: 6912676 kB > > Inactive: 1774364 kB > > > > Why does the 32GB-System have this plenty of inactive memory. Is there > > a way to find out, what the kernel is holding in readiness (that's the > > definition of inactive memory afaik)? > > > Inactive pages are marked in use but haven't been touched for some time. > These are candidates for memory reclaiming. > > If nothing memory consuming happens, the kswapd should reclaim them back > eventually. > > Hannes >
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