diff options
| author | Maria Matejka <mq@ucw.cz> | 2023-01-19 10:49:47 +0100 |
|---|---|---|
| committer | Maria Matejka <mq@ucw.cz> | 2023-01-19 11:13:50 +0100 |
| commit | 84c298465f6360a8694d4837f3420961ea321fa5 (patch) | |
| tree | 273455bf0e6f1b7a1be8956692feacbf6b3484a3 /doc/bird.sgml | |
| parent | 4d8d81f144e72fe2e182d7569087f2a8c8c5b938 (diff) | |
Decoupling loops from threads to allow fixed thread count
On large configurations, too many threads would spawn with one thread
per loop. Therefore, threads may now run multiple loops at once. The
thread count is configurable and may be changed during run. All threads
are spawned on startup.
This change helps with memory bloating. BIRD filters need large
temporary memory blocks to store their stack and also memory management
keeps its hot page storage per-thread.
Known bugs:
* Thread autobalancing is not yet implemented.
* Low latency loops are executed together with standard loops.
Diffstat (limited to 'doc/bird.sgml')
| -rw-r--r-- | doc/bird.sgml | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/doc/bird.sgml b/doc/bird.sgml index 3675d2e8..37028a3b 100644 --- a/doc/bird.sgml +++ b/doc/bird.sgml @@ -532,6 +532,12 @@ include "tablename.conf";; killed by abort signal. The timeout has effective granularity of seconds, zero means disabled. Default: disabled (0). + <tag><label id="opt-threads">threads <m/number/</tag> + Set how many worker threads should BIRD spawn. Tests show that every + thread can utilize one complete CPU core, therefore you probably want to + keep at least one free core. The maximum feasible thread count heavily + depends on the actual workload and must be determined by testing or estimation. Default: 1 + <tag><label id="opt-mrtdump">mrtdump "<m/filename/"</tag> Set MRTdump file name. This option must be specified to allow MRTdump feature. Default: no dump file. |