#ifndef __PERF_TOP_H #define __PERF_TOP_H 1 #include "tool.h" #include #include #include #include struct perf_evlist; struct perf_evsel; struct perf_session; struct perf_top { struct perf_tool tool; struct perf_evlist *evlist; struct record_opts record_opts; /* * Symbols will be added here in perf_event__process_sample and will * get out after decayed. */ u64 samples; u64 kernel_samples, us_samples; u64 exact_samples; u64 guest_us_samples, guest_kernel_samples; int print_entries, count_filter, delay_secs; int max_stack; bool hide_kernel_symbols, hide_user_symbols, zero; bool use_tui, use_stdio; bool vmlinux_warned; bool dump_symtab; struct hist_entry *sym_filter_entry; struct perf_evsel *sym_evsel; struct perf_session *session; struct winsize winsize; int realtime_prio; int sym_pcnt_filter; const char *sym_filter; float min_percent; }; #define CONSOLE_CLEAR "" size_t perf_top__header_snprintf(struct perf_top *top, char *bf, size_t size); void perf_top__reset_sample_counters(struct perf_top *top); #endif /* __PERF_TOP_H */ option value='packet-loop-back'>packet-loop-back net-next plumbingsTobias Klauser
summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorSteven Rostedt (VMware) <rostedt@goodmis.org>2017-01-30 19:27:10 -0500
committerSteven Rostedt (VMware) <rostedt@goodmis.org>2017-01-31 09:13:49 -0500
commit79c6f448c8b79c321e4a1f31f98194e4f6b6cae7 (patch)
tree370efda701f03cccf21e02bb1fdd3b852547d75c /net/llc/llc_pdu.c
parent0c744ea4f77d72b3dcebb7a8f2684633ec79be88 (diff)
tracing: Fix hwlat kthread migration
The hwlat tracer creates a kernel thread at start of the tracer. It is pinned to a single CPU and will move to the next CPU after each period of running. If the user modifies the migration thread's affinity, it will not change after that happens. The original code created the thread at the first instance it was called, but later was changed to destroy the thread after the tracer was finished, and would not be created until the next instance of the tracer was established. The code that initialized the affinity was only called on the initial instantiation of the tracer. After that, it was not initialized, and the previous affinity did not match the current newly created one, making it appear that the user modified the thread's affinity when it did not, and the thread failed to migrate again. Cc: stable@vger.kernel.org Fixes: 0330f7aa8ee6 ("tracing: Have hwlat trace migrate across tracing_cpumask CPUs") Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Diffstat (limited to 'net/llc/llc_pdu.c')