[lkml]   [2007]   [Nov]   [1]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
Subjectper-bdi-throttling: synchronous writepage doesn't work correctly

It looks like bdi_thresh will always be zero if filesystem does
synchronous writepage, resulting in very poor write performance.

Hostfs (UML) is one such example, but there might be others.

The only solution I can think of is to add a set_page_writeback();
end_page_writeback() pair (or some reduced variant, that only does
the proportions magic). But that means auditing quite a few

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
More majordomo info at
Please read the FAQ at

 \ /
  Last update: 2007-11-01 17:49    [from the cache]
©2003-2014 Jasper Spaans. hosted at Digital Ocean