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16 Apr 2019 09:34:10 +0800 (CST) Received: from DGGEML522-MBS.china.huawei.com ([169.254.8.248]) by DGGEML402-HUB.china.huawei.com ([fe80::fca6:7568:4ee3:c776%31]) with mapi id 14.03.0439.000; Tue, 16 Apr 2019 09:34:08 +0800 From: Linhaifeng To: Paul Clarke , "linux-perf-users@vger.kernel.org" , "linux-kernel@vger.kernel.org" Subject: RE: perf tools:Is there any tools to found out the max latency by irq or cpu idle Thread-Topic: perf tools:Is there any tools to found out the max latency by irq or cpu idle Thread-Index: AQHU8TjwQPH5fZKzxkKUF8YFzmG5zqY5l6vwgAMUFYCAAVhoEA== Date: Tue, 16 Apr 2019 01:34:07 +0000 Message-ID: <4099DE2E54AFAD489356C6C9161D533395929531@dggeml522-mbs.china.huawei.com> References: <4099DE2E54AFAD489356C6C9161D53339591D64A@DGGEML502-MBX.china.huawei.com> <8ce8c596-123e-1342-5ccc-06a5fd8a60ec@redhat.com> <4099DE2E54AFAD489356C6C9161D53339591DE6D@DGGEML502-MBX.china.huawei.com> <6e6a98a4-a442-1e10-cf5a-56b6792d42ba@us.ibm.com> In-Reply-To: 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