![]() ![]() Use this option if you are monitoring environment using JIT runtimes, such as Java, DART or V8. This option also generates the ELF images for each jitted function found in the jitdumps files captured in the input perf.data file. Process jitdump files by injecting the mmap records corresponding to jitted functions. Use with -itrace to strip out non-synthesized events. itrace=i0nss1000000 skips the first million instructions. This is useful to ignore initialization code. k -stack-traces print the execution stack trace of the traced processes after each system call. n -syscall-number print the syscall number. i -instruction-pointer print the instruction pointer at the time of the system call. ![]() It is also possible to skip events generated (instructions, branches, transactions, requires linux kernel version 4.16.0 or higher. Instructions or transactions events can be specified. Also the number of last branch entries (default 64, max. ![]() Ns nanoseconds (default) Also the call chain size (default 16, max. the same as -itrace=ibxwpe,Įxcept for perf script where it is -itrace=ce In addition, the period (default 100000, except for perf script where it is 1)įor instructions events can be specified in units of: i instructions S skip initial number of events The default is all events i.e. This release provides: A new version of the Valgrind itrace plugin. L synthesize last branch entries (use with i or x) This is the first release to support Suse Linux Enterprise 12. G synthesize a call chain (use with i or x) O synthesize other events recorded due to the use R synthesize branches events (returns only) Options are: i synthesize instructions eventsĬ synthesize branches events (calls only) kallsyms=ĭecode Instruction Tracing data, replacing it with synthesized events. sched_switch contains a callchain where a task slept and sched_stat contains a timeslice how long a task slept. Merge sched_stat and sched_switch for getting events where and how long tasks slept. Inject build-ids into the output stream -v, -verbose At any point the processing code can inject other events into the event stream - in this case build-ids ( -b option) are read and injected as needed into the event stream.īuild-ids are just the first user of perf-inject - potentially anything that needs userspace processing to augment the events stream with additional information could make use of this facility. Perf-inject reads a perf-record event stream and repipes it to stdout. Perf-inject - Filter to augment the events stream with additional information Synopsis perf inject Description ![]()
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