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GitLab is used only for code review, issue tracking and project management. Canonical locations for source code are still https://gitweb.torproject.org/ https://git.torproject.org/ and git-rw.torproject.org.

  • Legacy
  • TracTrac
  • Issues
  • #4626

Closed (moved)
Open
Opened Dec 01, 2011 by Sebastian Hahn@sebastian

Very high cpu usage for gabelmoo running with renegotiation-limiting code

Hey there,

gabelmoo is seeing almost full cpu utilization lately. I'm running openssl1 and libevent master. Traffic is at around 200KB/s, so not very much. Here's a profile for everything over 0.5%:

samples  %        image name               app name                 symbol name
397332   26.8226  libc.so.6                libc.so.6                /home/karsten/debug/libc.so.6
210739   14.2263  libpthread.so.0          libpthread.so.0          __pthread_mutex_unlock_usercnt
157849   10.6559  libpthread.so.0          libpthread.so.0          pthread_mutex_lock
62969     4.2508  tor                      tor                      connection_handle_write
56998     3.8477  tor                      tor                      _openssl_locking_cb
44452     3.0008  tor                      tor                      assert_connection_ok
38146     2.5751  tor                      tor                      connection_bucket_write_limit
37917     2.5597  [vdso] (tgid:17627 range:0x7fffb85ff000-0x7fffb8600000) tor                      [vdso] (tgid:17627 range:0x7fffb85ff000-0x7fffb8600000)
32683     2.2063  tor                      tor                      flush_buf_tls
29224     1.9728  tor                      tor                      connection_is_rate_limited
28245     1.9067  tor                      tor                      connection_bucket_round_robin
25259     1.7052  tor                      tor                      tor_tls_get_error
22309     1.5060  tor                      tor                      tor_tls_write
21562     1.4556  tor                      tor                      assert_buf_ok
20642     1.3935  tor                      tor                      get_options_mutable
19521     1.3178  tor                      tor                      approx_time
19272     1.3010  tor                      tor                      _check_no_tls_errors
19108     1.2899  tor                      tor                      conn_write_callback
18312     1.2362  tor                      tor                      tor_addr_is_internal
14932     1.0080  tor                      tor                      tor_tls_get_forced_write_size
14237     0.9611  tor                      tor                      tor_gettimeofday_cache_clear
12501     0.8439  librt.so.1               librt.so.1               /home/karsten/debug/librt.so.1
11918     0.8045  tor                      tor                      tor_mutex_acquire
11907     0.8038  tor                      tor                      tor_mutex_release
11376     0.7680  tor                      tor                      connection_bucket_refill
9770      0.6595  tor                      tor                      connection_is_listener
9582      0.6468  tor                      tor                      connection_is_reading
9493      0.6408  tor                      tor                      tor_tls_state_changed_callback
9087      0.6134  tor                      tor                      connection_is_writing
8689      0.5866  tor                      tor                      TO_OR_CONN
7890      0.5326  tor                      tor                      connection_state_is_connecting
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Reference: legacy/trac#4626