Re: [PATCH v7] sched: Consolidate cpufreq updates
From: Anjali K
Date: Mon Oct 07 2024 - 13:20:52 EST
Hi, I tested this patch to see if it causes any regressions on bare-metal power9 systems with microbenchmarks.
The test system is a 2 NUMA node 128 cpu powernv power9 system. The conservative governor is enabled.
I took the baseline as the 6.10.0-rc1 tip sched/core kernel.
No regressions were found.
+------------------------------------------------------+--------------------+----------+
| Benchmark | Baseline | Baseline |
| | (6.10.0-rc1 tip | + patch |
| | sched/core) | |
+------------------------------------------------------+--------------------+----------+
|Hackbench run duration (sec) | 1 | 1.01 |
|Lmbench simple fstat (usec) | 1 | 0.99 |
|Lmbench simple open/close (usec) | 1 | 1.02 |
|Lmbench simple read (usec) | 1 | 1 |
|Lmbench simple stat (usec) | 1 | 1.01 |
|Lmbench simple syscall (usec) | 1 | 1.01 |
|Lmbench simple write (usec) | 1 | 1 |
|stressng (bogo ops) | 1 | 0.94 |
|Unixbench execl throughput (lps) | 1 | 0.97 |
|Unixbench Pipebased Context Switching throughput (lps)| 1 | 0.94 |
|Unixbench Process Creation (lps) | 1 | 1 |
|Unixbench Shell Scripts (1 concurrent) (lpm) | 1 | 1 |
|Unixbench Shell Scripts (8 concurrent) (lpm) | 1 | 1.01 |
+------------------------------------------------------+--------------------+----------+
Thank you,
Anjali K