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Message-ID: <120041af-f4e9-5b6f-36dc-7d3535a1f01c@huawei.com>
Date: Thu, 17 Nov 2016 15:48:04 +0800
From: "Zhangjian (Bamvor)" <bamvor.zhangjian@...wei.com>
To: Maxim Kuvyrkov <maxim.kuvyrkov@...aro.org>
CC: Yury Norov <ynorov@...iumnetworks.com>, <arnd@...db.de>,
<catalin.marinas@....com>, <linux-arm-kernel@...ts.infradead.org>,
<linux-kernel@...r.kernel.org>, <linux-doc@...r.kernel.org>,
<linux-arch@...r.kernel.org>, <schwidefsky@...ibm.com>,
<heiko.carstens@...ibm.com>, Andrew Pinski <pinskia@...il.com>,
<broonie@...nel.org>, "Joseph S. Myers" <joseph@...esourcery.com>,
<christoph.muellner@...obroma-systems.com>,
Szabolcs Nagy <szabolcs.nagy@....com>,
<klimov.linux@...il.com>, <Nathan_Lynch@...tor.com>,
<agraf@...e.de>, Prasun Kapoor <Prasun.Kapoor@...iumnetworks.com>,
<kilobyte@...band.pl>, Geert Uytterhoeven <geert@...ux-m68k.org>,
"Dr. Philipp Tomsich" <philipp.tomsich@...obroma-systems.com>,
<manuel.montezelo@...il.com>, <linyongting@...wei.com>,
David Miller <davem@...emloft.net>,
<zhouchengming1@...wei.com>, <cmetcalf@...hip.com>,
<sellcey@...iumnetworks.com>, <hanjun.guo@...aro.org>,
Ding Tianhong <dingtianhong@...wei.com>,
"Zhangjian (Bamvor)" <bamvor.zhangjian@...wei.com>
Subject: Re: ILP32 for ARM64 - testing with lmbench
Hi, Maxim
On 2016/11/17 13:02, Maxim Kuvyrkov wrote:
> Hi Bamvor,
>
> I'm surprised that you see this much difference from ILP32 patches on SPEC CPU2006int at all. The SPEC CPU2006 benchmarks spend almost no time in the kernel syscalls. I can imagine memory, TLB, and cache handling in the kernel could affect CPU2006 benchmarks. Do ILP32 patches touch code in those areas?
>
> Other than that, it would be interesting to check what the variance is between the 3 iterations of benchmark runs. Could you check what relative standard deviation is between the 3 iterations -- (STDEV(RUN1, RUN2, RUN3) / RUNselected)?
>
> For reference, in my [non-ILP32] benchmarking I see 1.1% for 401.bzip2, 0.8% for 429.mcf, 0.2% for 456.hmmer, and 0.1% for 462.libquantum.
Here is my result:
ILP32_merged ILP32_unmerged
401.bzip2 0.31% 0.26%
429.mcf 1.61% 1.36%
456.hmmer 1.37% 1.57%
462.libquantum 0.29% 0.28%
Regards
Bamvor
>
> --
> Maxim Kuvyrkov
> www.linaro.org
>
>
>
>> On Nov 17, 2016, at 7:28 AM, Zhangjian (Bamvor) <bamvor.zhangjian@...wei.com> wrote:
>>
>> Hi, all
>>
>> I test specint of aarch64 LP64 when aarch32 el0 disable/enabled respectively
>> and compare with ILP32 unmerged kernel(4.8-rc6) in our arm64 board. I found
>> that difference(ILP32 disabled/ILP32 unmerged) is bigger when aarch32 el0 is
>> enabled, compare with aarch32 el0 disabled kernel. And bzip2, mcg, hmmer,
>> libquantum are the top four differences[1]. Note that bigger is better in
>> specint test.
>>
>> In order to make sure the above results, I retest these four testcases in
>> reportable way(reference the command in the end). The result[2] show that
>> libquantum decrease -2.09% after ILP32 enabled and aarch32 on. I think it is in
>> significant.
>>
>> The result of lmbench is not stable in my board. I plan to dig it later.
>>
>> [1] The following test result is tested through --size=ref --iterations=3.
>> 1.1 Test when aarch32_el0 is enabled.
>> ILP32 disabled base line
>> 400.perlbench 100.00% 100%
>> 401.bzip2 99.35% 100%
>> 403.gcc 100.26% 100%
>> 429.mcf 102.75% 100%
>> 445.gobmk 100.00% 100%
>> 456.hmmer 95.66% 100%
>> 458.sjeng 100.00% 100%
>> 462.libquantum 100.00% 100%
>> 471.omnetpp 100.59% 100%
>> 473.astar 99.66% 100%
>> 483.xalancbmk 99.10% 100%
>>
>> 1.2 Test when aarch32_el0 is disabled
>> ILP32 disabled base line
>> 400.perlbench 100.22% 100%
>> 401.bzip2 100.95% 100%
>> 403.gcc 100.20% 100%
>> 429.mcf 100.76% 100%
>> 445.gobmk 100.36% 100%
>> 456.hmmer 97.94% 100%
>> 458.sjeng 99.73% 100%
>> 462.libquantum 98.72% 100%
>> 471.omnetpp 100.86% 100%
>> 473.astar 99.15% 100%
>> 483.xalancbmk 100.08% 100%
>>
>> [2] The following test result is tested through: runspec --config=my.cfg --size=test,train,ref --noreportable --tune=base,peak --iterations=3 bzip2 mcf hmmer libquantum
>> 2.1 Test when aarch32_el0 is enabled.
>> ILP32_enabled base line
>> 401.bzip2 100.82% 100%
>> 429.mcf 100.18% 100%
>> 456.hmmer 99.64% 100%
>> 462.libquantum 97.91% 100%
>>
>> Regards
>>
>> Bamvor
>>
>> On 2016/10/28 20:46, Yury Norov wrote:
>>> [Add Steve Ellcey, thanks for testing on ThunderX]
>>>
>>> Lmbench-3.0-a9 testing is performed on ThunderX machine to check that
>>> ILP32 series does not add performance regressions for LP64. Test
>>> summary is in the table below. Our measurements doesn't show
>>> significant performance regression of LP64 if ILP32 code is merged,
>>> both enabled or disabled.
>>>
>>> ILP32 enabled ILP32 disabled Standard Kernel
>>> null syscall 0.1066 0.1121 0.1121
>>> 95.09% 100.00%
>>>
>>> stat 1.3947 1.3814 1.3864
>>> 100.60% 99.64%
>>>
>>> fstat 0.4459 0.4344 0.4524
>>> 98.56% 96.02%
>>>
>>> open/close 4.0606 4.0411 4.0453
>>> 100.38% 99.90%
>>>
>>> read 0.4819 0.5014 0.5014
>>> 96.11% 100.00%
>>>
>>> Tested with linux 4.8 because 4.9-rc1 is not fixed yet for ThunderX.
>>> Other system details below.
>>>
>>> Yury.
>>>
>>> ubuntu@...6:~$ uname -a
>>> Linux crb6 4.8.0+ #3 SMP Thu Oct 27 11:01:32 PDT 2016 aarch64 aarch64 aarch64 GNU/Linux
>>>
>>> ubuntu@...6:~$ cat /proc/meminfo
>>> MemTotal: 132011948 kB
>>> MemFree: 131442672 kB
>>> MemAvailable: 130695764 kB
>>> Buffers: 15696 kB
>>> Cached: 88088 kB
>>> SwapCached: 0 kB
>>> Active: 82760 kB
>>> Inactive: 41336 kB
>>> Active(anon): 20880 kB
>>> Inactive(anon): 8576 kB
>>> Active(file): 61880 kB
>>> Inactive(file): 32760 kB
>>> Unevictable: 0 kB
>>> Mlocked: 0 kB
>>> SwapTotal: 128920572 kB
>>> SwapFree: 128920572 kB
>>> Dirty: 0 kB
>>> Writeback: 0 kB
>>> AnonPages: 20544 kB
>>> Mapped: 19780 kB
>>> Shmem: 9060 kB
>>> Slab: 78804 kB
>>> SReclaimable: 27372 kB
>>> SUnreclaim: 51432 kB
>>> KernelStack: 8336 kB
>>> PageTables: 820 kB
>>> NFS_Unstable: 0 kB
>>> Bounce: 0 kB
>>> WritebackTmp: 0 kB
>>> CommitLimit: 194926544 kB
>>> Committed_AS: 256324 kB
>>> VmallocTotal: 135290290112 kB
>>> VmallocUsed: 0 kB
>>> VmallocChunk: 0 kB
>>> AnonHugePages: 0 kB
>>> ShmemHugePages: 0 kB
>>> ShmemPmdMapped: 0 kB
>>> CmaTotal: 0 kB
>>> CmaFree: 0 kB
>>> HugePages_Total: 0
>>> HugePages_Free: 0
>>> HugePages_Rsvd: 0
>>> HugePages_Surp: 0
>>> Hugepagesize: 2048 kB
>>>
>>> ubuntu@...6:~$ cat /proc/cpuinfo
>>> processor : 0
>>> BogoMIPS : 200.00
>>> Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics
>>> CPU implementer : 0x43
>>> CPU architecture: 8
>>> CPU variant : 0x1
>>> CPU part : 0x0a1
>>> CPU revision : 0
>>>
>>> processor : 1
>>> BogoMIPS : 200.00
>>> Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics
>>> CPU implementer : 0x43
>>> CPU architecture: 8
>>> CPU variant : 0x1
>>> CPU part : 0x0a1
>>> CPU revision : 0
>>>
>>> processor : 2
>>> BogoMIPS : 200.00
>>> Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics
>>> CPU implementer : 0x43
>>> CPU architecture: 8
>>> CPU variant : 0x1
>>> CPU part : 0x0a1
>>> CPU revision : 0
>>>
>>> processor : 3
>>> BogoMIPS : 200.00
>>> Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics
>>> CPU implementer : 0x43
>>> CPU architecture: 8
>>> CPU variant : 0x1
>>> CPU part : 0x0a1
>>> CPU revision : 0
>>>
>>> processor : 4
>>> BogoMIPS : 200.00
>>> Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics
>>> CPU implementer : 0x43
>>> CPU architecture: 8
>>> CPU variant : 0x1
>>> CPU part : 0x0a1
>>> CPU revision : 0
>>>
>>> processor : 5
>>> BogoMIPS : 200.00
>>> Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics
>>> CPU implementer : 0x43
>>> CPU architecture: 8
>>> CPU variant : 0x1
>>> CPU part : 0x0a1
>>> CPU revision : 0
>>>
>>> processor : 6
>>> BogoMIPS : 200.00
>>> Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics
>>> CPU implementer : 0x43
>>> CPU architecture: 8
>>> CPU variant : 0x1
>>> CPU part : 0x0a1
>>> CPU revision : 0
>>>
>>> processor : 7
>>> BogoMIPS : 200.00
>>> Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics
>>> CPU implementer : 0x43
>>> CPU architecture: 8
>>> CPU variant : 0x1
>>> CPU part : 0x0a1
>>> CPU revision : 0
>>>
>>> processor : 8
>>> BogoMIPS : 200.00
>>> Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics
>>> CPU implementer : 0x43
>>> CPU architecture: 8
>>> CPU variant : 0x1
>>> CPU part : 0x0a1
>>> CPU revision : 0
>>>
>>> processor : 9
>>> BogoMIPS : 200.00
>>> Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics
>>> CPU implementer : 0x43
>>> CPU architecture: 8
>>> CPU variant : 0x1
>>> CPU part : 0x0a1
>>> CPU revision : 0
>>>
>>> processor : 10
>>> BogoMIPS : 200.00
>>> Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics
>>> CPU implementer : 0x43
>>> CPU architecture: 8
>>> CPU variant : 0x1
>>> CPU part : 0x0a1
>>> CPU revision : 0
>>>
>>> processor : 11
>>> BogoMIPS : 200.00
>>> Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics
>>> CPU implementer : 0x43
>>> CPU architecture: 8
>>> CPU variant : 0x1
>>> CPU part : 0x0a1
>>> CPU revision : 0
>>>
>>> processor : 12
>>> BogoMIPS : 200.00
>>> Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics
>>> CPU implementer : 0x43
>>> CPU architecture: 8
>>> CPU variant : 0x1
>>> CPU part : 0x0a1
>>> CPU revision : 0
>>>
>>> processor : 13
>>> BogoMIPS : 200.00
>>> Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics
>>> CPU implementer : 0x43
>>> CPU architecture: 8
>>> CPU variant : 0x1
>>> CPU part : 0x0a1
>>> CPU revision : 0
>>>
>>> processor : 14
>>> BogoMIPS : 200.00
>>> Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics
>>> CPU implementer : 0x43
>>> CPU architecture: 8
>>> CPU variant : 0x1
>>> CPU part : 0x0a1
>>> CPU revision : 0
>>>
>>> processor : 15
>>> BogoMIPS : 200.00
>>> Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics
>>> CPU implementer : 0x43
>>> CPU architecture: 8
>>> CPU variant : 0x1
>>> CPU part : 0x0a1
>>> CPU revision : 0
>>>
>>> processor : 16
>>> BogoMIPS : 200.00
>>> Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics
>>> CPU implementer : 0x43
>>> CPU architecture: 8
>>> CPU variant : 0x1
>>> CPU part : 0x0a1
>>> CPU revision : 0
>>>
>>> processor : 17
>>> BogoMIPS : 200.00
>>> Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics
>>> CPU implementer : 0x43
>>> CPU architecture: 8
>>> CPU variant : 0x1
>>> CPU part : 0x0a1
>>> CPU revision : 0
>>>
>>> processor : 18
>>> BogoMIPS : 200.00
>>> Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics
>>> CPU implementer : 0x43
>>> CPU architecture: 8
>>> CPU variant : 0x1
>>> CPU part : 0x0a1
>>> CPU revision : 0
>>>
>>> processor : 19
>>> BogoMIPS : 200.00
>>> Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics
>>> CPU implementer : 0x43
>>> CPU architecture: 8
>>> CPU variant : 0x1
>>> CPU part : 0x0a1
>>> CPU revision : 0
>>>
>>> processor : 20
>>> BogoMIPS : 200.00
>>> Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics
>>> CPU implementer : 0x43
>>> CPU architecture: 8
>>> CPU variant : 0x1
>>> CPU part : 0x0a1
>>> CPU revision : 0
>>>
>>> processor : 21
>>> BogoMIPS : 200.00
>>> Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics
>>> CPU implementer : 0x43
>>> CPU architecture: 8
>>> CPU variant : 0x1
>>> CPU part : 0x0a1
>>> CPU revision : 0
>>>
>>> processor : 22
>>> BogoMIPS : 200.00
>>> Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics
>>> CPU implementer : 0x43
>>> CPU architecture: 8
>>> CPU variant : 0x1
>>> CPU part : 0x0a1
>>> CPU revision : 0
>>>
>>> processor : 23
>>> BogoMIPS : 200.00
>>> Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics
>>> CPU implementer : 0x43
>>> CPU architecture: 8
>>> CPU variant : 0x1
>>> CPU part : 0x0a1
>>> CPU revision : 0
>>>
>>> processor : 24
>>> BogoMIPS : 200.00
>>> Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics
>>> CPU implementer : 0x43
>>> CPU architecture: 8
>>> CPU variant : 0x1
>>> CPU part : 0x0a1
>>> CPU revision : 0
>>>
>>> processor : 25
>>> BogoMIPS : 200.00
>>> Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics
>>> CPU implementer : 0x43
>>> CPU architecture: 8
>>> CPU variant : 0x1
>>> CPU part : 0x0a1
>>> CPU revision : 0
>>>
>>> processor : 26
>>> BogoMIPS : 200.00
>>> Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics
>>> CPU implementer : 0x43
>>> CPU architecture: 8
>>> CPU variant : 0x1
>>> CPU part : 0x0a1
>>> CPU revision : 0
>>>
>>> processor : 27
>>> BogoMIPS : 200.00
>>> Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics
>>> CPU implementer : 0x43
>>> CPU architecture: 8
>>> CPU variant : 0x1
>>> CPU part : 0x0a1
>>> CPU revision : 0
>>>
>>> processor : 28
>>> BogoMIPS : 200.00
>>> Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics
>>> CPU implementer : 0x43
>>> CPU architecture: 8
>>> CPU variant : 0x1
>>> CPU part : 0x0a1
>>> CPU revision : 0
>>>
>>> processor : 29
>>> BogoMIPS : 200.00
>>> Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics
>>> CPU implementer : 0x43
>>> CPU architecture: 8
>>> CPU variant : 0x1
>>> CPU part : 0x0a1
>>> CPU revision : 0
>>>
>>> processor : 30
>>> BogoMIPS : 200.00
>>> Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics
>>> CPU implementer : 0x43
>>> CPU architecture: 8
>>> CPU variant : 0x1
>>> CPU part : 0x0a1
>>> CPU revision : 0
>>>
>>> processor : 31
>>> BogoMIPS : 200.00
>>> Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics
>>> CPU implementer : 0x43
>>> CPU architecture: 8
>>> CPU variant : 0x1
>>> CPU part : 0x0a1
>>> CPU revision : 0
>>>
>>> processor : 32
>>> BogoMIPS : 200.00
>>> Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics
>>> CPU implementer : 0x43
>>> CPU architecture: 8
>>> CPU variant : 0x1
>>> CPU part : 0x0a1
>>> CPU revision : 0
>>>
>>> processor : 33
>>> BogoMIPS : 200.00
>>> Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics
>>> CPU implementer : 0x43
>>> CPU architecture: 8
>>> CPU variant : 0x1
>>> CPU part : 0x0a1
>>> CPU revision : 0
>>>
>>> processor : 34
>>> BogoMIPS : 200.00
>>> Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics
>>> CPU implementer : 0x43
>>> CPU architecture: 8
>>> CPU variant : 0x1
>>> CPU part : 0x0a1
>>> CPU revision : 0
>>>
>>> processor : 35
>>> BogoMIPS : 200.00
>>> Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics
>>> CPU implementer : 0x43
>>> CPU architecture: 8
>>> CPU variant : 0x1
>>> CPU part : 0x0a1
>>> CPU revision : 0
>>>
>>> processor : 36
>>> BogoMIPS : 200.00
>>> Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics
>>> CPU implementer : 0x43
>>> CPU architecture: 8
>>> CPU variant : 0x1
>>> CPU part : 0x0a1
>>> CPU revision : 0
>>>
>>> processor : 37
>>> BogoMIPS : 200.00
>>> Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics
>>> CPU implementer : 0x43
>>> CPU architecture: 8
>>> CPU variant : 0x1
>>> CPU part : 0x0a1
>>> CPU revision : 0
>>>
>>> processor : 38
>>> BogoMIPS : 200.00
>>> Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics
>>> CPU implementer : 0x43
>>> CPU architecture: 8
>>> CPU variant : 0x1
>>> CPU part : 0x0a1
>>> CPU revision : 0
>>>
>>> processor : 39
>>> BogoMIPS : 200.00
>>> Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics
>>> CPU implementer : 0x43
>>> CPU architecture: 8
>>> CPU variant : 0x1
>>> CPU part : 0x0a1
>>> CPU revision : 0
>>>
>>> processor : 40
>>> BogoMIPS : 200.00
>>> Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics
>>> CPU implementer : 0x43
>>> CPU architecture: 8
>>> CPU variant : 0x1
>>> CPU part : 0x0a1
>>> CPU revision : 0
>>>
>>> processor : 41
>>> BogoMIPS : 200.00
>>> Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics
>>> CPU implementer : 0x43
>>> CPU architecture: 8
>>> CPU variant : 0x1
>>> CPU part : 0x0a1
>>> CPU revision : 0
>>>
>>> processor : 42
>>> BogoMIPS : 200.00
>>> Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics
>>> CPU implementer : 0x43
>>> CPU architecture: 8
>>> CPU variant : 0x1
>>> CPU part : 0x0a1
>>> CPU revision : 0
>>>
>>> processor : 43
>>> BogoMIPS : 200.00
>>> Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics
>>> CPU implementer : 0x43
>>> CPU architecture: 8
>>> CPU variant : 0x1
>>> CPU part : 0x0a1
>>> CPU revision : 0
>>>
>>> processor : 44
>>> BogoMIPS : 200.00
>>> Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics
>>> CPU implementer : 0x43
>>> CPU architecture: 8
>>> CPU variant : 0x1
>>> CPU part : 0x0a1
>>> CPU revision : 0
>>>
>>> processor : 45
>>> BogoMIPS : 200.00
>>> Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics
>>> CPU implementer : 0x43
>>> CPU architecture: 8
>>> CPU variant : 0x1
>>> CPU part : 0x0a1
>>> CPU revision : 0
>>>
>>> processor : 46
>>> BogoMIPS : 200.00
>>> Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics
>>> CPU implementer : 0x43
>>> CPU architecture: 8
>>> CPU variant : 0x1
>>> CPU part : 0x0a1
>>> CPU revision : 0
>>>
>>> processor : 47
>>> BogoMIPS : 200.00
>>> Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics
>>> CPU implementer : 0x43
>>> CPU architecture: 8
>>> CPU variant : 0x1
>>> CPU part : 0x0a1
>>> CPU revision : 0
>>>
>>
>
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