Linux 使用hwlat测量到意外的高延迟峰值
我正在使用hwlat_检测器跟踪器来测量在Linux之外引起的系统延迟 用于测量的机器是华硕Zenbook ux331un。我确实使用idle=poll kernel cmd line参数禁用了处理器电源状态，禁用了超线程，禁用了turbo boost。 以下是hwlat跟踪器的输出示例Linux 使用hwlat测量到意外的高延迟峰值,linux,performance,x86,real-time,preempt-rt,Linux,Performance,X86,Real Time,Preempt Rt,我正在使用hwlat_检测器跟踪器来测量在Linux之外引起的系统延迟 用于测量的机器是华硕Zenbook ux331un。我确实使用idle=poll kernel cmd line参数禁用了处理器电源状态，禁用了超线程，禁用了turbo boost。 以下是hwlat跟踪器的输出示例 <...>-4976 [002] d...... 3258.677286: #81 inner/outer(us): 31/33 ts:1572267806.6086817
<...>-4976 [002] d...... 3258.677286: #81 inner/outer(us): 31/33 ts:1572267806.608681762
<...>-4976 [003] dn..... 3276.085073: #82 inner/outer(us): 32/34 ts:1572267824.016656104
<...>-4976 [000] d.L.... 3277.113063: #83 inner/outer(us): 32/0 ts:1572267825.044656725
<...>-4976 [003] dn..... 3280.181030: #84 inner/outer(us): 32/32 ts:1572267828.112657027
<...>-4976 [000] dnL.... 3281.205020: #85 inner/outer(us): 32/32 ts:1572267829.136657127
<...>-4976 [002] dn..... 3283.252999: #86 inner/outer(us): 456/33 ts:1572267831.184659048
<...>-4976 [003] dn..... 3284.276986: #87 inner/outer(us): 16/32 ts:1572267832.208656275
<...>-4976 [000] dnL.... 3285.300975: #88 inner/outer(us): 16/33 ts:1572267833.232656714
<...>-4976 [002] dn..... 3287.348959: #89 inner/outer(us): 20/33 ts:1572267835.280662760
<...>-4976 [003] dn..... 3288.372943: #90 inner/outer(us): 33/34 ts:1572267836.304657092
<...>-4976 [000] dnL.... 3289.396938: #91 inner/outer(us): 32/32 ts:1572267837.328663631
<...>-4976 [002] dn..... 3291.444912: #92 inner/outer(us): 20/33 ts:1572267839.376659443
-4976[002]d。。。。。。3258.677286:#81内部/外部（美国）：31/33 ts:1572267806.608681762
-4976[003]dn。。。。。3276.085073:#82内/外（美国）：32/34 ts:1572267824.016656104
-4976[000]d.L.…3277.113063:#83内/外（美国）：32/0 ts:1572267825.044656725
-4976[003]dn。。。。。3280.181030:#84内/外（美国）：32/32 ts:1572267828.112657027
-4976[000]dnL。。。。3281.205020:#85内/外（美国）：32/32 ts:1572267829.136657127
-4976[002]dn。。。。。3283.252999:#86内/外（美国）：456/33 ts:1572267831.184659048
-4976[003]dn。。。。。3284.276986:#87内部/外部（美国）：16/32 ts:1572267832.208656275
-4976[000]dnL。。。。3285.300975:#88内/外（美国）：16/33 ts:1572267833.232656714
-4976[002]dn。。。。。3287.348959:#89内部/外部（美国）：20/33 ts:1572267835.280662760
-4976[003]dn。。。。。3288.372943:#90内/外（美国）：33/34 ts:1572267836.304657092
-4976[000]dnL。。。。3289.396938:#91内部/外部（美国）：32/32 ts:1572267837.3286631
-4976[002]dn。。。。。3291.444912:#92内部/外部（美国）：20/33 ts:1572267839.376659443