From: "Zhou, Jie2X" <jie2x.zhou@intel.com>
To: "ast@kernel.org" <ast@kernel.org>,
"daniel@iogearbox.net" <daniel@iogearbox.net>,
"andrii@kernel.org" <andrii@kernel.org>,
"kafai@fb.com" <kafai@fb.com>,
"songliubraving@fb.com" <songliubraving@fb.com>,
"yhs@fb.com" <yhs@fb.com>,
"john.fastabend@gmail.com" <john.fastabend@gmail.com>,
"kpsingh@kernel.org" <kpsingh@kernel.org>
Cc: "netdev@vger.kernel.org" <netdev@vger.kernel.org>,
"bpf@vger.kernel.org" <bpf@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"Li, ZhijianX" <zhijianx.li@intel.com>,
"Ma, XinjianX" <xinjianx.ma@intel.com>, lkp <lkp@intel.com>,
"Li, Philip" <philip.li@intel.com>
Subject: Re: kernel-selftests: make run_tests -C bpf cost 5 hours
Date: Wed, 1 Dec 2021 06:54:38 +0000 [thread overview]
Message-ID: <PH0PR11MB4792C2AC6C5185FBC95B9C21C5689@PH0PR11MB4792.namprd11.prod.outlook.com> (raw)
In-Reply-To: <PH0PR11MB479271060FA116D87B95E12DC5669@PH0PR11MB4792.namprd11.prod.outlook.com>
ping
________________________________________
From: Zhou, Jie2X
Sent: Monday, November 29, 2021 3:36 PM
To: ast@kernel.org; daniel@iogearbox.net; andrii@kernel.org; kafai@fb.com; songliubraving@fb.com; yhs@fb.com; john.fastabend@gmail.com; kpsingh@kernel.org
Cc: netdev@vger.kernel.org; bpf@vger.kernel.org; linux-kernel@vger.kernel.org; Li, ZhijianX; Ma, XinjianX
Subject: kernel-selftests: make run_tests -C bpf cost 5 hours
hi,
I have tested v5.16-rc1 kernel bpf function by make run_tests -C tools/testing/selftests/bpf.
And found it cost above 5 hours.
Check dmesg and found that lib/test_bpf.ko cost so much time.
In tools/testing/selftests/bpf/test_kmod.sh insmod test_bpf.ko four times.
It took 40 seconds for the first three times.
When do 4th test among 1009 test cases from #812 ALU64_AND_K to #936 JMP_JSET_K every test case cost above 1 min.
Is it currently to cost so much time?
kern :info : [ 1127.985791] test_bpf: #811 ALU64_MOV_K: all immediate value magnitudes
kern :info : [ 1237.158485] test_bpf: #812 ALU64_AND_K: all immediate value magnitudes jited:1 127955 PASS
kern :info : [ 1341.638557] test_bpf: #813 ALU64_OR_K: all immediate value magnitudes jited:1 155039 PASS
kern :info : [ 1447.725483] test_bpf: #814 ALU64_XOR_K: all immediate value magnitudes jited:1 129621 PASS
kern :info : [ 1551.808683] test_bpf: #815 ALU64_ADD_K: all immediate value magnitudes jited:1 120428 PASS
kern :info : [ 1655.550594] test_bpf: #816 ALU64_SUB_K: all immediate value magnitudes jited:1 175712 PASS
......
kern :info : [16725.824950] test_bpf: #931 JMP32_JLE_X: all register value magnitudes jited:1 216508 PASS
kern :info : [16911.555675] test_bpf: #932 JMP32_JSGT_X: all register value magnitudes jited:1 178367 PASS
kern :info : [17101.466163] test_bpf: #933 JMP32_JSGE_X: all register value magnitudes jited:1 191436 PASS
kern :info : [17288.359154] test_bpf: #934 JMP32_JSLT_X: all register value magnitudes jited:1 165714 PASS
kern :info : [17480.615048] test_bpf: #935 JMP32_JSLE_X: all register value magnitudes jited:1 172846 PASS
kern :info : [17667.472140] test_bpf: #936 JMP_JSET_K: imm = 0 -> never taken jited:1 14 PASS
test_bpf.ko dmesg output is attached.
best regards,
next prev parent reply other threads:[~2021-12-01 6:55 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-11-29 7:36 Zhou, Jie2X
2021-12-01 6:54 ` Zhou, Jie2X [this message]
2021-12-02 9:26 ` Daniel Borkmann
2021-12-02 11:03 ` Johan Almbladh
2021-12-02 20:41 ` sunyucong
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