Closed Bug 988011 Opened 8 years ago Closed 8 years ago
HTTP cache v2: minimize number of posts in the payload read code path
In the past I discovered we do a lot of reposts while reading chunks of payload from the cache. It has major bad influence on reading performance. I was hoping we would need to fix this as one of optimizations after the new cache is turned on, but seems like this is too much of a regression. Attached is a detailed log snippet from a cache2 enabled talos run. I'd like to try to at least slightly increase performance here with good gain/risk ratio.
Talos results shows enlarging the chunk is enough for now. Also, I now recall I was playing with removing/minimizing the number of posts before we have the prioritization in the IO thread and I also found low influence of it to my page load tests when the IO prioritization was in the tree. Lowering impact rate here.
Status: NEW → RESOLVED
Closed: 8 years ago
Resolution: --- → DUPLICATE
Duplicate of bug: 999383
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