[PATCH v8 9/9] app/test: add memarea to malloc-perf-autotest

[fengchengwen]

Hi Dmitry,

On 2022/10/11 23:58, Dmitry Kozlyuk wrote:
> 2022-10-11 12:17 (UTC+0000), Chengwen Feng:
>> This patch adds memarea to malloc_perf_autotest.
>>
>> Test platform: Kunpeng920
>> Test command: dpdk-test -a 0000:7d:00.3 -l 10-12
>> Test result:
>> USER1: Performance: rte_memarea
>> USER1:    Size (B)   Runs  Alloc (us) Free (us) Total (us)  memset (us)
>> USER1:          64  10000        0.03      0.03       0.06         0.01
>> USER1:         128  10000        0.02      0.03       0.05         0.01
>> USER1:        1024  10000        0.03      0.05       0.07         0.20
>> USER1:        4096  10000        0.03      0.05       0.07         0.34
>> USER1:       65536  10000        0.10      0.08       0.18         2.14
>> USER1:     1048576    644        0.10      0.04       0.14        29.07
>> USER1:     2097152    322        0.10      0.04       0.14        57.50
>> USER1:     4194304    161        0.12      0.04       0.15       114.50
>> USER1:    16777216     40        0.11      0.04       0.15       456.09
>> USER1:  1073741824 Interrupted: out of memory. [1]
>>
>> Compared with rte_malloc:
>> USER1: Performance: rte_malloc
>> USER1:    Size (B)   Runs  Alloc (us) Free (us) Total (us)  memset (us)
>> USER1:          64  10000        0.14      0.07       0.21         0.01
>> USER1:         128  10000        0.10      0.05       0.15         0.01
>> USER1:        1024  10000        0.11      0.18       0.29         0.21
>> USER1:        4096  10000        0.13      0.39       0.53         0.35
>> USER1:       65536  10000        0.17      2.27       2.44         2.15
>> USER1:     1048576  10000       37.21     71.63     108.84        29.08
>> USER1:     2097152  10000     8831.15    160.02    8991.17        63.52
>> USER1:     4194304  10000    47131.88    413.75   47545.62       173.79
>> USER1:    16777216   4221   119604.60   2209.73  121814.34       964.42
>> USER1:  1073741824     31   335058.32 223369.31  558427.63     62440.87
>>
>> [1] The total-size of the memarea is restricted to avoid creation
>> failed.
> 
> This is not a fair comparison:
> rte_malloc time includes obtaining memory from the system.

Yes, but I want to keep this patch, at least we know the different.

> I think that memarea should have a dedicated benchmark,
> because eventually it will be interesting to compare memarea
> with different sources and algorithms.

It may take a long time to reach a benchmark that everyone agrees with.
I will try after this patch set upstreamed.

> It will be also possible to add DPDK allocator to the comparison
> by running it for an isolated heap that doesn't grow.
> (In some distant future it would be cool to make DPDK allocator pluggable!)
> Some shared code between this benchmark and the new one can be factored out.
> .
>