随笔分类 -  调试-性能分析

随笔-性能分析-工具sysreport
摘要：https://learn.arm.com/learning-paths/servers-and-cloud-computing/sysreport/ install git clone https://github.com/ArmDeveloperEcosystem/sysreport.git a 阅读全文
posted @ 2025-02-24 00:59 LiYanbin 阅读(4) 评论(0) 推荐(0) 编辑
随笔-性能分析-perf record on-cpu off-cpu
摘要：perf on-cpu xpid=$(cat /var/run/xx.pid); perf record -F 99 -p $xpid --call-graph dwarf -- sleep 60 直接在控制台上查看：perf report 或者生成火焰图： xdata=...; perf scri 阅读全文
posted @ 2024-08-31 23:50 LiYanbin 阅读(137) 评论(0) 推荐(0) 编辑
随笔-性能分析-lock profiling|identifying contended user-space locks
摘要：https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/5/html/systemtap_beginners_guide/futexcontentionsect#futexcontentionsect global thre 阅读全文
posted @ 2024-08-28 01:51 LiYanbin 阅读(5) 评论(0) 推荐(0) 编辑
随笔-性能分析-sched(sched lat|wait time|run time)
摘要：目录perf sched lat计算原理perf sched wait time计算过程perf sched 分析wait time perf sched lat计算原理 sched lat 计算过程： tracepoint:sched:sched_wakeup, tracepoint:sched: 阅读全文
posted @ 2024-08-26 01:13 LiYanbin 阅读(107) 评论(0) 推荐(0) 编辑

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