Sample timestamp and cpu just like the -R option.
Before:
            init-0     [-01] 
1266874889.
17179869184709551615: irq_handler_entry: irq=18 handler=eth0
            init-0     [-01] 
1266874889.
17179869184709551615: irq_handler_entry: irq=18 handler=eth0
            init-0     [-01] 
1266874889.
17179869184709551615: irq_handler_entry: irq=1 handler=i8042
            init-0     [-01] 
1266874889.
17179869184709551615: irq_handler_entry: irq=18 handler=eth0
            init-0     [-01] 
1266874889.
17179869184709551615: irq_handler_entry: irq=1 handler=i8042
After:
            init-0     [001]  7364.
568965353: irq_handler_entry: irq=18 handler=eth0
            init-0     [001]  7365.
530226877: irq_handler_entry: irq=1 handler=i8042
            init-0     [001]  7365.
542831563: irq_handler_entry: irq=18 handler=eth0
            init-0     [001]  7365.
644156299: irq_handler_entry: irq=18 handler=eth0
            init-0     [001]  7365.
694556201: irq_handler_entry: irq=18 handler=eth0
Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Acked-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
LKML-Reference: <
4AB1F827.
8040905@cn.fujitsu.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
        int fd;
 
        if (flags) {
-               if (!strncmp(flags, "record", strlen(flags)))
+               if (!strncmp(flags, "record", strlen(flags))) {
                        attr->sample_type |= PERF_SAMPLE_RAW;
+                       attr->sample_type |= PERF_SAMPLE_TIME;
+                       attr->sample_type |= PERF_SAMPLE_CPU;
+               }
        }
 
        snprintf(evt_path, MAXPATHLEN, "%s/%s/%s/id", debugfs_path,