Edit report at https://bugs.php.net/bug.php?id=73889&edit=1
ID: 73889
Comment by: spam2 at rhsoft dot net
Reported by: spam2 at rhsoft dot net
Summary: memory leaks / valgrind report
Status: Feedback
Type: Bug
Package: MySQLi related
PHP Version: 7.1.3
Block user comment: N
Private report: N
New Comment:
:-(
it's running the complete testsuite / crwaling of our core-cms originally setup for
profile-guided-optimization whichin the rpmbuild-process
Previous Comments:
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[2017-03-09 17:16:44] nikic@php.net
I was not able to determine the source of this leak by just looking at the code. What is leaking
here are field names from result metadata, but I was not able to find the codepath where these are
not freed. I'm afraid this is not going to move forward without a reproduce case.
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[2017-03-03 11:09:05] spam2 at rhsoft dot net
updated component and version
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[2017-03-03 11:08:12] spam2 at rhsoft dot net
frankly this still exists with 7.1.3RC1 and no feedback at all after trying to provide the requested
informations is not cool
==28119== 86,312 bytes in 2,201 blocks are definitely lost in loss record 137 of 137
==28119== at 0x4C2BBAD: malloc (vg_replace_malloc.c:299)
==28119== by 0x6C83555: __zend_malloc (zend_alloc.c:2820)
==28119== by 0x6BD4244: zend_string_alloc (zend_string.h:122)
==28119== by 0x6BD42DA: zend_string_init (zend_string.h:158)
==28119== by 0x6BDC0A8: php_mysqlnd_rset_field_read (mysqlnd_wireprotocol.c:1378)
==28119== by 0x6C01598: mysqlnd_mysqlnd_res_meta_read_metadata_pub (mysqlnd_result_meta.c:76)
==28119== by 0x6BF6A5D: mysqlnd_mysqlnd_res_read_result_metadata_pub (mysqlnd_result.c:385)
==28119== by 0x6BF7BD7: mysqlnd_query_read_result_set_header (mysqlnd_result.c:539)
==28119== by 0x6C097FC: mysqlnd_com_reap_result_run (mysqlnd_commands.c:764)
==28119== by 0x6BC375F: mysqlnd_mysqlnd_conn_data_reap_query_pub (mysqlnd_connection.c:917)
==28119== by 0x6BC2EB2: mysqlnd_mysqlnd_conn_data_query_pub (mysqlnd_connection.c:859)
==28119== by 0x12BEC857: zif_mysqli_query (mysqli_nonapi.c:593)
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[2017-01-21 18:28:35] spam2 at rhsoft dot net
any news here?
memleaks are really serious because you need to configure the server be it httpd or fpm to more
often restart forkers and that has a performance impact up to not even get the machine to 100% CPU
because it's busy with fork processes
"MaxRequestsPerChild 100" - 70% CPU
Concurrency Level: 150
Time taken for tests: 31.819 seconds
Complete requests: 100000
Failed requests: 0
Total transferred: 397837794 bytes
HTML transferred: 360737544 bytes
Requests per second: 3142.74 [#/sec] (mean)
Time per request: 47.729 [ms] (mean)
Time per request: 0.318 [ms] (mean, across all concurrent requests)
Transfer rate: 12209.95 [Kbytes/sec] received
"MaxRequestsPerChild 100000" - 90% CPU
Concurrency Level: 150
Time taken for tests: 24.304 seconds
Complete requests: 100000
Failed requests: 0
Total transferred: 397835334 bytes
HTML transferred: 360735110 bytes
Requests per second: 4114.62 [#/sec] (mean)
Time per request: 36.455 [ms] (mean)
Time per request: 0.243 [ms] (mean, across all concurrent requests)
Transfer rate: 15985.74 [Kbytes/sec] received
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[2017-01-11 10:57:58] spam2 at rhsoft dot net
7.1.1 RC1 some line numbers changed
==28074== 82,976 bytes in 2,124 blocks are definitely lost in loss record 136 of 136
==28074== at 0x4C2BBAD: malloc (vg_replace_malloc.c:299)
==28074== by 0x6C89E18: __zend_malloc (zend_alloc.c:2820)
==28074== by 0x6BDABC8: zend_string_alloc (zend_string.h:122)
==28074== by 0x6BDAC5E: zend_string_init (zend_string.h:158)
==28074== by 0x6BE2A2C: php_mysqlnd_rset_field_read (mysqlnd_wireprotocol.c:1378)
==28074== by 0x6C07F07: mysqlnd_mysqlnd_res_meta_read_metadata_pub (mysqlnd_result_meta.c:76)
==28074== by 0x6BFD3CC: mysqlnd_mysqlnd_res_read_result_metadata_pub (mysqlnd_result.c:385)
==28074== by 0x6BFE546: mysqlnd_query_read_result_set_header (mysqlnd_result.c:539)
==28074== by 0x6C1016B: mysqlnd_com_reap_result_run (mysqlnd_commands.c:764)
==28074== by 0x6BCA0E3: mysqlnd_mysqlnd_conn_data_reap_query_pub (mysqlnd_connection.c:917)
==28074== by 0x6BC9836: mysqlnd_mysqlnd_conn_data_query_pub (mysqlnd_connection.c:859)
==28074== by 0xA3C0BE5: zif_mysqli_query (mysqli_nonapi.c:593)
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