Messages in this thread | | | Date | Tue, 26 Apr 2011 17:43:52 +0800 | From | Wu Fengguang <> | Subject | [PATCH 0/3] reduce readahead overheads on tmpfs mmap page faults |
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Andrew,
This kills unnessesary ra->mmap_miss and ra->prev_pos updates on every page fault when the readahead is disabled.
They fix the cache line bouncing problem in the mosbench exim benchmark, which does multi-threaded page faults on shared struct file on tmpfs.
Thanks, Fengguang
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