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MINOR: threads: mark all_threads_mask as read_mostly

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This variable almost never changes and is read a lot in time-critical
sections. threads_want_rdv_mask is read very often as well in
thread_harmless_end() and is almost never changed (only when someone
uses thread_isolate()). Let's move both to read_mostly.
This commit is contained in:
Willy Tarreau 2021-04-10 17:28:18 +02:00
parent ff88270ef9
commit 56c3b8b4e8
1 changed files with 2 additions and 2 deletions
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4
src/thread.c
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@ -34,10 +34,10 @@ THREAD_LOCAL struct thread_info *ti = &ha_thread_info[0];
#ifdef USE_THREAD
volatile unsigned long threads_want_rdv_mask = 0;
volatile unsigned long threads_want_rdv_mask __read_mostly = 0;
volatile unsigned long threads_harmless_mask = 0;
volatile unsigned long threads_sync_mask = 0;
volatile unsigned long all_threads_mask = 1; // nbthread 1 assumed by default
volatile unsigned long all_threads_mask __read_mostly = 1; // nbthread 1 assumed by default
THREAD_LOCAL unsigned int tid = 0;
THREAD_LOCAL unsigned long tid_bit = (1UL << 0);
int thread_cpus_enabled_at_boot = 1;