Re: [GENERAL] Memory Overcommit

2012-06-07 Thread Tom Lane
Andy Chambers writes: > We've just run into the dreaded "OOM Killer". I see that on Linux >> 2.6, it's recommended to turn off memory overcommit. I'm trying to > understand the implications of doing this. The interweb says this > means that forking servers can't make use of "copy on write" > se

[GENERAL] Memory Overcommit

2012-06-07 Thread Andy Chambers
Hi All, We've just run into the dreaded "OOM Killer". I see that on Linux >2.6, it's recommended to turn off memory overcommit. I'm trying to understand the implications of doing this. The interweb says this means that forking servers can't make use of "copy on write" semantics. Is this true?