subject:"\[Python\-Dev\] obmalloc mmap\/munmap thrashing"

Re: [Python-Dev] obmalloc mmap/munmap thrashing

2016-04-21 Thread Tim Peters

You may be interested in this seemingly related bug report: http://bugs.python.org/issue26601 [Neil Schemenauer ] > I was running Python 2.4.11 under strace and I noticed some odd > looking system calls: > > mmap(NULL, 262144, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = > 0x7f9

Re: [Python-Dev] obmalloc mmap/munmap thrashing

2016-04-21 Thread Alexander Walters

...is that a typo for 2.7.11? On 4/21/2016 17:44, Neil Schemenauer wrote: I was running Python 2.4.11 under strace and I noticed some odd looking system calls: mmap(NULL, 262144, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9848681000 munmap(0x7f9848681000, 262144) =

[Python-Dev] obmalloc mmap/munmap thrashing

2016-04-21 Thread Neil Schemenauer

I was running Python 2.4.11 under strace and I noticed some odd looking system calls: mmap(NULL, 262144, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9848681000 munmap(0x7f9848681000, 262144) = 0 mmap(NULL, 262144, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0)