CaROS/poky
3
1
Fork 0
mirror of https://git.yoctoproject.org/git/poky synced 2026-01-04 16:10:04 +00:00
Code Issues Packages Projects Releases Wiki Activity

bitbake: utils: better estimate number of available cpus

Browse Source 
When running in a cgroup which is limited to a subset of cpus (via
cpuset.cpus), cpu_count() should return the number of cpus that can be
used instead of the number of cpus the system has.

This also aligns the semantics with nproc.

(Bitbake rev: a029bfe96c6542f178720c72a772b7ede9898118)

Signed-off-by: Felix Moessbauer <felix.moessbauer@siemens.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Felix Moessbauer 2024-03-13 11:06:45 +01:00 committed by Richard Purdie
parent 3a97792820
commit 9504df41f9
1 changed files with 4 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
bitbake/lib/bb/utils.py
View File

@ -1142,7 +1142,10 @@ def get_referenced_vars(start_expr, d):
def cpu_count():
return multiprocessing.cpu_count()
try:
return len(os.sched_getaffinity(0))
except OSError:
return multiprocessing.cpu_count()
def nonblockingfd(fd):
fcntl.fcntl(fd, fcntl.F_SETFL, fcntl.fcntl(fd, fcntl.F_GETFL) | os.O_NONBLOCK)