[SERVER-12096] Enterprise rhel62 build is much slower than rhel57 build in GSSAPI Connection Performance Created: 14/Dec/13 Updated: 19/May/14 Resolved: 17/Jan/14 |
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| Status: | Closed |
| Project: | Core Server |
| Component/s: | Security |
| Affects Version/s: | 2.4.8, 2.5.3 |
| Fix Version/s: | None |
| Type: | Bug | Priority: | Major - P3 |
| Reporter: | Rui Zhang (Inactive) | Assignee: | Rui Zhang (Inactive) |
| Resolution: | Won't Fix | Votes: | 0 |
| Labels: | 26qa | ||
| Remaining Estimate: | Not Specified | ||
| Time Spent: | Not Specified | ||
| Original Estimate: | Not Specified | ||
| Issue Links: |
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| Operating System: | ALL | ||||
| Participants: | |||||
| Description |
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During my authentication perf test, found that rhel6.2 build is much slower in setting up GSSAPI connection than rhel5.7 build, and take much more CPU. This behavior is the same for 2.4.8 as well. In order to make sure this is not due to environment, I setup two setups, one in EC2 and one in my local environment. Here is output from EC2 (both server run with m1.xlarge) 2.5.5-pre (2013-12-11) rhel62 vs rhel57: the same behavior also presents with 2.4.8 similar from run from local VMs |
| Comments |
| Comment by Rui Zhang (Inactive) [ 19/Dec/13 ] |
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schwerin will do, I am trying to wrap up Windows platform testing, after it is done, will collect more details for this ticket and |
| Comment by Andy Schwerin [ 19/Dec/13 ] |
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rui.zhang, can you and Davide use the gperftools CPU profiler or the valgrind callgrind tool to collect profiles of the benchmark running on the two platforms? I suspect this issue is beyond our control, but a profile graph would help. |
| Comment by Rui Zhang (Inactive) [ 19/Dec/13 ] |
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Re-assign this to schwerin, please re-assign if this shall go to another engineer. Thanks |
| Comment by Daniel Pasette (Inactive) [ 19/Dec/13 ] |
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What is the test doing? |