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Performance regression - too many sigprocmask() system calls [CORE2049] #2485

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firebird-automations opened this issue Aug 22, 2008 · 6 comments

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@firebird-automations
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Submitted by: @AlexPeshkoff

Class SignalInhibit is using sigprocmask() system call to disable signals processing in critical parts of code. This leads to abnormally intensive flow of sigprocmask() system calls, causing performance problems in almost any engine operation mode.

Commits: edc71f5 fdcf30b

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Modified by: @AlexPeshkoff

assignee: Alexander Peshkov [ alexpeshkoff ]

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Commented by: @AlexPeshkoff

Except when being in signal handler reverted to old way of signals disabling, which does not require system calls.

Great luck that HEAD is not touched - signals are not in use in it any more.

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Modified by: @AlexPeshkoff

status: Open [ 1 ] => Resolved [ 5 ]

resolution: Fixed [ 1 ]

Fix Version: 2.1.2 [ 10270 ]

Fix Version: 2.0.5 [ 10222 ]

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Modified by: @pcisar

status: Resolved [ 5 ] => Closed [ 6 ]

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Modified by: @pavel-zotov

QA Status: No test

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Modified by: @pavel-zotov

status: Closed [ 6 ] => Closed [ 6 ]

QA Status: No test => Cannot be tested

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