DescriptionAccumulate FileSystemUsageCache updates to improve write performance.
This change reduces the number of usage cache update on appending data to a file, and improves the write performance from 75.72 MB/s (σ = 23.255) to 229.238 MB/s (σ = 31.442) on a benchmark.
https://www.googledrive.com/host/0B0EZi1x_1MtFSnNRZy1nalVNdlk/append-write.html
BUG=166158
Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=175474
Patch Set 1 #Patch Set 2 : test fix, change to URL based accum to path based accum #Patch Set 3 : testfix #
Total comments: 4
Patch Set 4 : drop Unretained #
Total comments: 4
Patch Set 5 : skip update task for invalid usage cache #
Messages
Total messages: 7 (0 generated)
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