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dgoulet pushed a commit to branch main in repository tor.

The following commit(s) were added to refs/heads/main by this push: new 5db238f3e3 thread: Bump max detectable CPU from 16 to 128 new 65a85a9d23 Merge branch 'maint-0.4.7' 5db238f3e3 is described below

commit 5db238f3e3df54b11cf376d57d2cd89257b594f8 Author: David Goulet dgoulet@torproject.org AuthorDate: Fri Oct 28 11:13:46 2022 -0400

thread: Bump max detectable CPU from 16 to 128

Lets take advantage of those beefy machines ;).

Closes #40703

Signed-off-by: David Goulet dgoulet@torproject.org --- changes/ticket40703 | 4 ++++ src/lib/thread/numcpus.c | 6 +++++- src/test/test_util.c | 2 +- 3 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/changes/ticket40703 b/changes/ticket40703 new file mode 100644 index 0000000000..f005f8f851 --- /dev/null +++ b/changes/ticket40703 @@ -0,0 +1,4 @@ + o Minor feature (performance): + - Bump the maximum amount of CPU to use from 16 to 128. Note that NumCPUs + torrc option overrides this hardcoded maximum. Fixes bug 40703; bugfix on + 0.3.5.1-alpha. diff --git a/src/lib/thread/numcpus.c b/src/lib/thread/numcpus.c index 2c2589fdfe..e0ddb69931 100644 --- a/src/lib/thread/numcpus.c +++ b/src/lib/thread/numcpus.c @@ -70,7 +70,11 @@ compute_num_cpus_impl(void) #endif /* defined(_WIN32) || ... */ }

-#define MAX_DETECTABLE_CPUS 16 +/** This is an arbitrary number but at this point in time, it is not that + * uncommon to see servers up to that amount of CPUs. Most servers will likely + * be around 16 to 32 cores now. Lets take advantage of large machines! The + * "NumCPUs" torrc option overrides this maximum. */ +#define MAX_DETECTABLE_CPUS 128

/** Return how many CPUs we are running with. We assume that nobody is * using hot-swappable CPUs, so we don't recompute this after the first diff --git a/src/test/test_util.c b/src/test/test_util.c index aa38d0fc5d..1dae2c617e 100644 --- a/src/test/test_util.c +++ b/src/test/test_util.c @@ -4987,7 +4987,7 @@ test_util_num_cpus(void *arg) tt_skip();

tt_int_op(num, OP_GE, 1); - tt_int_op(num, OP_LE, 16); + tt_int_op(num, OP_LE, 128);

done: ;