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Diffstat (limited to 'docs/users_guide/runtime_control.rst')
| -rw-r--r-- | docs/users_guide/runtime_control.rst | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/docs/users_guide/runtime_control.rst b/docs/users_guide/runtime_control.rst index 738d981a18..0b9cdfbfbc 100644 --- a/docs/users_guide/runtime_control.rst +++ b/docs/users_guide/runtime_control.rst @@ -653,6 +653,26 @@ performance. This is an experimental feature, please let us know if it causes problems and/or could benefit from further tuning. +.. rts-flag:: -Iw ⟨seconds⟩ + + :default: 0 seconds + + .. index:: + single: idle GC + + By default, if idle GC is enabled in the threaded runtime, a major + GC will be performed every time the process goes idle for a + sufficiently long duration (see :rts-flag:`-I ⟨seconds⟩`). For + large server processes accepting regular but infrequent requests + (e.g., once per second), an expensive, major GC may run after + every request. As an alternative to shutting off idle GC entirely + (with ``-I0``), a minimum wait time between idle GCs can be + specified with this flag. For example, ``-Iw60`` will ensure that + an idle GC runs at most once per minute. + + This is an experimental feature, please let us know if it causes + problems and/or could benefit from further tuning. + .. rts-flag:: -ki ⟨size⟩ :default: 1k |