Chapter 4 - DSpace at Waseda University
Chapter 4 - DSpace at Waseda University
Chapter 4 - DSpace at Waseda University
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4.3 Kernel Analysis System Algorithm …………………………………….................... 48<br />
4.3.1 Important function and parameter ………………………………………….… 50<br />
4.4 Trace Point and Event Log ……………………………………................................ 52<br />
4.5 LTTng and KAS ………………………………………………………………….… 53<br />
4.6 Summary ………………………………………………………………….………... 55<br />
5. Case Study<br />
5.1 Timer L<strong>at</strong>ency …………………………………………………………………........ 57<br />
5.2 Preemptive vs. Non-preemptive ……………………………………………............ 59<br />
5.2.1 Preemptive Kernel …………………………………………………………... 59<br />
5.2.2 Non-preemptive Kernel ………………………………………………….….. 61<br />
5.3 High Resolution Timer ………………………………………………………….…. 62<br />
5.4 L<strong>at</strong>ency Policy ………………………………………………………………….….. 64<br />
5.5 Evalu<strong>at</strong>ion …………………………………………………………………….……. 65<br />
5.5.1 Result of KAS ………………………………………………………………... 67<br />
5.5.1.1 Result of DL …………………………………………………………... 68<br />
5.5.1.2 Result of SL ………………………………………………………..….. 69<br />
5.5.1.3 Result of AL ……………………………………………………….….. 70<br />
5.5.2 Analysis of HRTimer L<strong>at</strong>ency ………………………………………………... 72<br />
5.6 Summary ………………………………………………………………………….... 78<br />
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