lscpu can skip all CPUs which are possible but not present. For
configurations where a lot of CPUs are possible but only few CPUs are
present this saves a lot of pointless glibc/system calls.
Signed-off-by: Heiko Carstens <heiko.carstens@xxxxxxxxxx>
---
sys-utils/lscpu.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/sys-utils/lscpu.c b/sys-utils/lscpu.c
index dbb639c2fe2a..1da595b3dac7 100644
--- a/sys-utils/lscpu.c
+++ b/sys-utils/lscpu.c
@@ -2059,6 +2059,10 @@ int main(int argc, char *argv[])
read_basicinfo(desc, mod);
for (i = 0; i < desc->ncpuspos; i++) {
+ /* only consider present CPUs */
+ if (desc->present &&
+ !CPU_ISSET(real_cpu_num(desc, i), desc->present))
+ continue;
read_topology(desc, i);
read_cache(desc, i);
read_polarization(desc, i);
--
2.6.6
--
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