diff options
| author | Amir Shehata <[email protected]> | 2016-11-02 21:25:01 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <[email protected]> | 2016-11-07 11:36:46 +0100 |
| commit | 9cc58f1eba46cbaafbc5eb0b519ba26ac1d0d26a (patch) | |
| tree | f1f51f984bb0e8d348e201cb74c1b11df4f84d9f /tools/perf/scripts/python/call-graph-from-postgresql.py | |
| parent | 028f78a9b83534f18ee7383cfad0052aa0de47a1 (diff) | |
staging/lustre/ptlrpc: Correctly calculate hrp->hrp_nthrs
cpu_pattern can specify exactly 1 cpu in a partition:
"0[0]". That means CPT0 will have CPU 0. CPU 0 can have
hyperthreading enabled. This combination would result in
weight = cfs_cpu_ht_nsiblings(0);
hrp->hrp_nthrs = cfs_cpt_weight(ptlrpc_hr.hr_cpt_table, i);
hrp->hrp_nthrs /= weight;
evaluating to 0. Where
cfs_cpt_weight(ptlrpc_hr.hr_cpt_table, i) == 1
weight == 2
Therefore, if hrp_nthrs becomes zero, just set it to 1.
Signed-off-by: Amir Shehata <[email protected]>
Reviewed-on: http://review.whamcloud.com/19106
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-8492
Reviewed-by: Liang Zhen <[email protected]>
Reviewed-by: Doug Oucharek <[email protected]>
Reviewed-by: James Simmons <[email protected]>
Signed-off-by: Oleg Drokin <[email protected]>
Reviewed-by: James Simmons <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/call-graph-from-postgresql.py')
0 files changed, 0 insertions, 0 deletions