[tor-bugs] #4626 [Tor Directory Authority]: Very high cpu usage for gabelmoo running master

[Tor Bug Tracker & Wiki]

#4626: Very high cpu usage for gabelmoo running master
-------------------------------------+--------------------------------------
 Reporter:  Sebastian                |          Owner:                    
     Type:  defect                   |         Status:  new               
 Priority:  normal                   |      Milestone:  Tor: 0.2.3.x-final
Component:  Tor Directory Authority  |        Version:                    
 Keywords:                           |         Parent:                    
   Points:                           |   Actualpoints:                    
-------------------------------------+--------------------------------------

Comment(by Sebastian):

 latest profile:

 {{{

 samples  %        image name               app name                 symbol
 name
 1632346  11.8094  libc.so.6                libc.so.6
 /home/karsten/debug/libc.so.6
 1498099  10.8382  tor                      tor
 sha1_block_data_order
 1416223  10.2458  tor                      tor
 bn_mul_mont
 565760    4.0931  tor                      tor
 lh_retrieve
 470492    3.4038  tor                      tor
 CRYPTO_THREADID_cmp
 460371    3.3306  tor                      tor
 CRYPTO_lock
 453698    3.2823  tor                      tor
 ssleay_rand_add
 334489    2.4199  tor                      tor
 assert_connection_ok
 295292    2.1363  tor                      tor
 ssl3_read_n
 291990    2.1124  tor                      tor
 ERR_clear_error
 291403    2.1082  tor                      tor
 EVP_DigestInit_ex
 272549    1.9718  tor                      tor
 SHA1_Update
 216186    1.5640  tor                      tor
 ssl3_accept
 187467    1.3563  tor                      tor
 connection_handle_write
 178321    1.2901  tor                      tor
 ssl3_setup_read_buffer
 170131    1.2308  tor                      tor
 ssl3_read_bytes
 164986    1.1936  tor                      tor
 SHA1_Final
 163540    1.1831  tor                      tor
 flush_buf_tls
 161413    1.1678  tor                      tor
 connection_bucket_write_limit
 155617    1.1258  tor                      tor
 connection_bucket_round_robin
 152358    1.1023  tor                      tor
 conn_write_callback
 150020    1.0853  tor                      tor
 tor_tls_write
 140980    1.0199  tor                      tor
 SHA1_Init
 139537    1.0095  tor                      tor
 BIO_read
 135219    0.9783  tor                      tor
 int_thread_get_item
 132170    0.9562  [vdso] (tgid:1517 range:0x7fff413ff000-0x7fff41400000)
 tor                      [vdso] (tgid:1517
 range:0x7fff413ff000-0x7fff41400000)
 124277    0.8991  tor                      tor
 get_error_values
 122123    0.8835  tor                      tor
 ssl3_release_read_buffer
 111395    0.8059  tor                      tor
 EVP_DigestFinal_ex
 110316    0.7981  tor                      tor
 CRYPTO_add_lock
 104822    0.7583  tor                      tor
 engine_table_select
 103036    0.7454  tor                      tor
 EVP_MD_CTX_init
 98293     0.7111  tor                      tor
 EVP_MD_CTX_cleanup
 97970     0.7088  tor                      tor
 int_thread_get
 97956     0.7087  tor                      tor
 tor_addr_is_internal
 96442     0.6977  tor                      tor
 sock_read
 91395     0.6612  tor                      tor
 assert_buf_ok
 85942     0.6218  tor                      tor
 ssl3_write_bytes
 84626     0.6122  tor                      tor
 ssl3_get_message
 78316     0.5666  tor                      tor
 OPENSSL_cleanse
 76337     0.5523  tor                      tor
 tor_tls_get_error
 73666     0.5329  tor                      tor
 _log_fn
 73623     0.5326  tor                      tor
 _check_no_tls_errors
 71169     0.5149  tor                      tor
 int_thread_release
 68475     0.4954  tor                      tor
 SSL_get_error
 67685     0.4897  librt.so.1               librt.so.1
 /home/karsten/debug/librt.so.1
 67298     0.4869  tor                      tor
 ERR_get_state
 62872     0.4549  tor                      tor
 tor_tls_state_changed_callback
 60933     0.4408  tor                      tor
 CRYPTO_malloc
 53032     0.3837  tor                      tor
 connection_state_is_connecting
 49586     0.3587  tor                      tor
 SSL_version
 48757     0.3527  tor                      tor
 connection_is_writing
 46488     0.3363  tor                      tor
 TO_OR_CONN
 46311     0.3350  tor                      tor
 approx_time
 45217     0.3271  tor                      tor
 ssl3_check_client_hello
 45038     0.3258  tor                      tor
 ERR_peek_error
 }}}

-- 
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/4626#comment:6>
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