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From: Chaoyong He <chaoyong.he@corigine.com>
To: dev@dpdk.org
Cc: oss-drivers@corigine.com, niklas.soderlund@corigine.com,
	Peng Zhang <peng.zhang@corigine.com>,
	stable@dpdk.org, Chaoyong He <chaoyong.he@corigine.com>
Subject: [PATCH v1] buildtools: ensure the NUMA nodes are counted correct
Date: Tue,  2 Aug 2022 15:54:15 +0800	[thread overview]
Message-ID: <1659426855-11014-1-git-send-email-chaoyong.he@corigine.com> (raw)

From: Peng Zhang <peng.zhang@corigine.com>

Sorting a list of strings with the format "node[0-9]+" in order to find the
largest integer by looking at the last item after the sort breaks. But if
there are more then 10 items as a string sort will sort "node10" before
"node2", it will get the error NUMA nodes.

Solve this by sorting the list based on the integer part of the string.

Fixes: 8ef09fdc506b ("build: add optional NUMA and CPU counts detection")
Cc: stable@dpdk.org

Signed-off-by: Peng Zhang <peng.zhang@corigine.com>
Signed-off-by: Chaoyong He <chaoyong.he@corigine.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@corigine.com>
---
 buildtools/get-numa-count.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/buildtools/get-numa-count.py b/buildtools/get-numa-count.py
index 1b7787787f..2f243886cd 100644
--- a/buildtools/get-numa-count.py
+++ b/buildtools/get-numa-count.py
@@ -6,11 +6,12 @@
 import glob
 import os
 import subprocess
+import re
 
 if os.name == 'posix':
     if os.path.isdir('/sys/devices/system/node'):
         numa_nodes = glob.glob('/sys/devices/system/node/node*')
-        numa_nodes.sort()
+        numa_nodes.sort(key=lambda l: int(re.findall('\d+', l)[0]))
         print(int(os.path.basename(numa_nodes[-1])[4:]) + 1)
     else:
         subprocess.run(['sysctl', '-n', 'vm.ndomains'], check=False)
-- 
2.27.0


             reply	other threads:[~2022-08-02  7:54 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-08-02  7:54 Chaoyong He [this message]
2022-08-29 10:41 ` Thomas Monjalon
     [not found]   ` <MWHPR1301MB1997EA5A5CF4A320A13493E4EF769@MWHPR1301MB1997.namprd13.prod.outlook.com>
     [not found]     ` <3155813.0WQXIW03uk@thomas>
2022-08-30  2:32       ` Nole Zhang
2022-09-22  8:06 ` [PATCH v2] " Niklas Söderlund
2022-10-10  7:52   ` Niklas Söderlund
2022-10-10 23:11   ` Thomas Monjalon

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