Displaying 2 results from an estimated 2 matches for "lookup_page_cgroup".
2012 Jun 18
0
a stacktrace i had on my luks encrypted btrfs partition on kernel 3.4
...736.235928] [<ffffffffa01ec37e>] ?
release_extent_buffer.isra.28+0x5a/0x76 [btrfs]
[34736.235993] [<ffffffffa01ee04d>] ?
try_release_extent_buffer+0x96/0xa1 [btrfs]
[34736.236009] [<ffffffff810c674e>] ? shrink_page_list+0x55b/0x741
[34736.236009] [<ffffffff810faba7>] ? lookup_page_cgroup+0x31/0x3a
[34736.236009] [<ffffffff810cda7e>] ? zone_page_state_add+0x14/0x23
[34736.236009] [<ffffffff810ce298>] ? __mod_zone_page_state+0x3c/0x45
[34736.236009] [<ffffffff810c5613>] ?
update_isolated_counts.isra.44+0x109/0x128
[34736.236009] [<ffffffff810c6d24>] ? shr...
2013 Aug 22
13
Lustre buffer cache causes large system overhead.
We have just discovered that a large buffer cache generated from traversing a
lustre file system will cause a significant system overhead for applications
with high memory demands. We have seen a 50% slowdown or worse for
applications. Even High Performance Linpack, that have no file IO whatsoever
is affected. The only remedy seems to be to empty the buffer cache from memory
by running