On Sat, 2014-02-15 at 11:22 +0100, Sebastiano Vigna wrote: > Something happened from HttpClient 4.3.1 to 4.3.2. > > All of a sudden, we are seeing an immense amount of CPU spent into inflating > compressed HTTP responses. We were experimenting >5000 pages/s two months > ago, but less than 1200 pages/s now (same hardware, etc.), for no apparent > reason. The CPU is 100% consumed by Inflater. > > The absolutely weird thing is that in profiling we are spending 15% doing > inflation and 1.5% doing deflation... and the same amount of data is going > through the two phases. Downgrading to 4.3.1 immediately brought back the old > performance, and we spend more time in deflation than in inflation (as it > should be). > > Maybe some change in the buffer size? > > Ciao, >
Here's the diff between 4.3.1 and 4.3.2 https://github.com/apache/httpclient/compare/4.3.1...4.3.2 The problem mostly likely has been introduced by HTTPCLIENT-1432 [1]. I reviewed the patch once more and could not find anything obviously wrong with it. Try reverting the changes introduced by HTTPCLIENT-1432 and see if that resolves the problem. Oleg [1] https://issues.apache.org/jira/browse/HTTPCLIENT-1432 --------------------------------------------------------------------- To unsubscribe, e-mail: httpclient-users-unsubscr...@hc.apache.org For additional commands, e-mail: httpclient-users-h...@hc.apache.org
