1 i synthesize instructions events 2 b synthesize branches events 3 c synthesize branches events (calls only) 4 r synthesize branches events (returns only) 5 x synthesize transactions events 6 w synthesize ptwrite events 7 p synthesize power events 8 o synthesize other events recorded due to the use 9 of aux-output (refer to perf record) 10 e synthesize error events 11 d create a debug log 12 g synthesize a call chain (use with i or x) 13 G synthesize a call chain on existing event records 14 l synthesize last branch entries (use with i or x) 15 L synthesize last branch entries on existing event records 16 s skip initial number of events 17 18 The default is all events i.e. the same as --itrace=ibxwpe, 19 except for perf script where it is --itrace=ce 20 21 In addition, the period (default 100000, except for perf script where it is 1) 22 for instructions events can be specified in units of: 23 24 i instructions 25 t ticks 26 ms milliseconds 27 us microseconds 28 ns nanoseconds (default) 29 30 Also the call chain size (default 16, max. 1024) for instructions or 31 transactions events can be specified. 32 33 Also the number of last branch entries (default 64, max. 1024) for 34 instructions or transactions events can be specified. 35 36 Similar to options g and l, size may also be specified for options G and L. 37 On x86, note that G and L work poorly when data has been recorded with 38 large PEBS. Refer linkperf:perf-intel-pt[1] man page for details. 39 40 It is also possible to skip events generated (instructions, branches, transactions, 41 ptwrite, power) at the beginning. This is useful to ignore initialization code. 42 43 --itrace=i0nss1000000 44 45 skips the first million instructions. 46