Hi,
I tested these patches with patches from your preview branch [1] and some
platform specific patches on MediaTek MT8173 EVB (integrated branch at [2])
> Test 0:
> for i in `seq 1 10`; \
> do sysbench --test=cpu --max-time=3 --num-threads=1 run; \
> done \
> | awk '{if ($4=="events:") {print $5; sum +=$5; runs +=1}} \
> END {print "Average events: " sum/runs}'
> Target: ARM TC2 (2xA15+3xA7)
>
> (Higher is better)
> tip: Average events: 146.9
> patch: Average events: 217.9
Target: MediaTek MT8173 EVB (2xA53+2xA72)
w/o capacity patches:
274.7 (actually, it varies a lot between 194 and 329
w/ capacity patches:
328.7
> Test 1:
> perf stat --null --repeat 10 -- \
> perf bench sched messaging -g 50 -l 5000
>
> Target: Intel IVB-EP (2*10*2)
>
> tip: 4.861970420 seconds time elapsed ( +- 1.39% )
> patch: 4.886204224 seconds time elapsed ( +- 0.75% )
>
> Target: ARM TC2 A7-only (3xA7) (-l 1000)
>
> tip: 61.485682596 seconds time elapsed ( +- 0.07% )
> patch: 62.667950130 seconds time elapsed ( +- 0.36% )
>
Target: MediaTek MT8173 EVB A53-only (2xA7) (-l 1000)
w/o capacity patches:
72.663181227 seconds time elapsed ( +- 1.62% )
71.502263666 seconds time elapsed ( +- 0.45% )
73.707466212 seconds time elapsed ( +- 0.99% )
73.623523997 seconds time elapsed ( +- 1.85% )
74.150137066 seconds time elapsed ( +- 1.41% )
w/ capacity patches:
70.360055056 seconds time elapsed ( +- 1.58% )
69.884793481 seconds time elapsed ( +- 0.78% )
73.395917166 seconds time elapsed ( +- 1.86% )
70.082440427 seconds time elapsed ( +- 1.66% )
69.365401758 seconds time elapsed ( +- 0.80% )
Tested-by: Koan-Sin Tan <[email protected]>
[1] git://linux-arm.org/linux-power.git capacity_awareness_v2_arm64_v1
[2] https://git.linaro.org/people/freedom.tan/linux-8173.git
v4.7-rc5-mt8173-capacity
