[lttng-dev] 答复：答复： Can lttng support kernel function tracer

2015-02-24 Thread zhenyu.ren
Oh,What I want is something like lttng enable-event -a -k --function to enable ALL function trace. Thanks zhenyu.ren -- 发件人：zhenyu.ren zhenyu@aliyun.com 发送时间：2015年2月18日(星期三) 14:29 收件人：Francis Deslauriers

Re: [lttng-dev] 答复：答复： Can lttng support kernel function tracer

2015-02-19 Thread Francis Deslauriers
You can use the snapshot feature to start recording whenever you witness a significant latency[1]. You can use the system() function to trigger a record from your app. e.g. system(lttng snapshot record); [1] http://lttng.org/docs/#doc-taking-a-snapshot I hope it helps. Francis On Wed, Feb 18,