On 1/11/22 16:34, Andre Przywara wrote:
When genboardscfg.py is run on machines with 255 or more cores, the
process will consume more than 1024 file descriptors, which is a common
standard ulimit for user processes. As a consequence it will fail with a
lenghty Python trace, with the almost hidden message:
OSError: [Errno 24] Too many open files
It's somewhat questionable whether that level of parallelity is actually
useful for genboardscfg, so we limit the *default* number of jobs to the
safe number of 240, to avoid the problem.
If a user persists, she can still force a higher number via the -j
Nits:
%s/persists/insists/
%s/she/they/ if you don't specifically mean a female user.
Otherwise
Reviewed-by: Heinrich Schuchardt <xypron.g...@gmx.de>
parameter - hopefully having raised the ulimit accordingly beforehand.
Signed-off-by: Andre Przywara <andre.przyw...@arm.com>
---
tools/genboardscfg.py | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/genboardscfg.py b/tools/genboardscfg.py
index 4ee7aa1f89..07bf681d1d 100755
--- a/tools/genboardscfg.py
+++ b/tools/genboardscfg.py
@@ -430,7 +430,7 @@ def main():
# Add options here
parser.add_option('-f', '--force', action="store_true", default=False,
help='regenerate the output even if it is new')
- parser.add_option('-j', '--jobs', type='int', default=cpu_count,
+ parser.add_option('-j', '--jobs', type='int', default=min(cpu_count, 240),
help='the number of jobs to run simultaneously')
parser.add_option('-o', '--output', default=OUTPUT_FILE,
help='output file [default=%s]' % OUTPUT_FILE)
