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sys: improve perf_event_open description
This commit is contained in:
Dmitry Vyukov
parent
4e20245f4d
commit
447e172205
25
sys/perf.txt
25
sys/perf.txt
@ -21,15 +21,24 @@ ioctl$PERF_EVENT_IOC_SET_BPF(fd fd_perf, cmd const[PERF_EVENT_IOC_SET_BPF], prog
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perf_flags = PERF_FLAG_FD_NO_GROUP, PERF_FLAG_FD_OUTPUT, PERF_FLAG_PID_CGROUP, PERF_FLAG_FD_CLOEXEC
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perf_event_type = PERF_TYPE_HARDWARE, PERF_TYPE_SOFTWARE, PERF_TYPE_TRACEPOINT, PERF_TYPE_HW_CACHE, PERF_TYPE_RAW, PERF_TYPE_BREAKPOINT
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perf_bp_type = HW_BREAKPOINT_EMPTY, HW_BREAKPOINT_R, HW_BREAKPOINT_W, HW_BREAKPOINT_X
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perf_attr_flags = 1, 2, 4
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perf_sample_type = PERF_SAMPLE_IP, PERF_SAMPLE_TID, PERF_SAMPLE_TIME, PERF_SAMPLE_ADDR, PERF_SAMPLE_READ, PERF_SAMPLE_CALLCHAIN, PERF_SAMPLE_ID, PERF_SAMPLE_CPU, PERF_SAMPLE_PERIOD, PERF_SAMPLE_STREAM_ID, PERF_SAMPLE_RAW, PERF_SAMPLE_BRANCH_STACK, PERF_SAMPLE_REGS_USER, PERF_SAMPLE_STACK_USER, PERF_SAMPLE_WEIGHT, PERF_SAMPLE_DATA_SRC, PERF_SAMPLE_IDENTIFIER, PERF_SAMPLE_TRANSACTION, PERF_SAMPLE_REGS_INTR
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perf_read_format = PERF_FORMAT_TOTAL_TIME_ENABLED, PERF_FORMAT_TOTAL_TIME_RUNNING, PERF_FORMAT_ID, PERF_FORMAT_GROUP
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perf_branch_sample_type = PERF_SAMPLE_BRANCH_USER, PERF_SAMPLE_BRANCH_KERNEL, PERF_SAMPLE_BRANCH_HV, PERF_SAMPLE_BRANCH_ANY, PERF_SAMPLE_BRANCH_ANY_CALL, PERF_SAMPLE_BRANCH_ANY_RETURN, PERF_SAMPLE_BRANCH_IND_CALL, PERF_SAMPLE_BRANCH_ABORT_TX, PERF_SAMPLE_BRANCH_IN_TX, PERF_SAMPLE_BRANCH_NO_TX, PERF_SAMPLE_BRANCH_COND, PERF_SAMPLE_BRANCH_CALL_STACK, PERF_SAMPLE_BRANCH_IND_JUMP, PERF_SAMPLE_BRANCH_CALL, PERF_SAMPLE_BRANCH_NO_FLAGS, PERF_SAMPLE_BRANCH_NO_CYCLES, PERF_SAMPLE_BRANCH_MAX
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perf_attr_flags = 1, 2, 4, 8
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perf_event_attr {
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type flags[perf_event_type, int32]
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size len[parent, int32]
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config int64
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#TODO: config can contain lots of various flags depending on type.
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# this is a hacky way to generate something reasonable.
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config0 int8
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config1 int8
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config2 int8
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config3 int8
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config4 const[0, int32]
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freq int64
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sample int64
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format int64
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sample flags[perf_sample_type, int64]
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format flags[perf_read_format, int64]
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# Lots of various bit flags.
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# Split into int8's because for int64 large values generated less frequently than small ones.
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# Kernel checks that unused bits are zero.
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@ -40,12 +49,14 @@ perf_event_attr {
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freserv const[0, int32]
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wakeup int32
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bptype flags[perf_bp_type, int32]
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config1 int64
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config2 int64
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bsample int64
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config5 int64
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config6 int64
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bsample flags[perf_branch_sample_type, int64]
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regs int64
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stack int64
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clockid flags[clock_type, int32]
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regs2 int64
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auxwm int32
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maxstk int16
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reserv const[0, int16]
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}
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@ -16,6 +16,46 @@ PERF_FLAG_FD_CLOEXEC = 8
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PERF_FLAG_FD_NO_GROUP = 1
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PERF_FLAG_FD_OUTPUT = 2
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PERF_FLAG_PID_CGROUP = 4
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PERF_FORMAT_GROUP = 8
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PERF_FORMAT_ID = 4
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PERF_FORMAT_TOTAL_TIME_ENABLED = 1
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PERF_FORMAT_TOTAL_TIME_RUNNING = 2
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PERF_SAMPLE_ADDR = 8
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PERF_SAMPLE_BRANCH_ABORT_TX = 128
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PERF_SAMPLE_BRANCH_ANY = 8
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PERF_SAMPLE_BRANCH_ANY_CALL = 16
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PERF_SAMPLE_BRANCH_ANY_RETURN = 32
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PERF_SAMPLE_BRANCH_CALL = 8192
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PERF_SAMPLE_BRANCH_CALL_STACK = 2048
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PERF_SAMPLE_BRANCH_COND = 1024
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PERF_SAMPLE_BRANCH_HV = 4
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PERF_SAMPLE_BRANCH_IND_CALL = 64
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PERF_SAMPLE_BRANCH_IND_JUMP = 4096
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PERF_SAMPLE_BRANCH_IN_TX = 256
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PERF_SAMPLE_BRANCH_KERNEL = 2
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PERF_SAMPLE_BRANCH_MAX = 65536
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PERF_SAMPLE_BRANCH_NO_CYCLES = 32768
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PERF_SAMPLE_BRANCH_NO_FLAGS = 16384
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PERF_SAMPLE_BRANCH_NO_TX = 512
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PERF_SAMPLE_BRANCH_STACK = 2048
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PERF_SAMPLE_BRANCH_USER = 1
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PERF_SAMPLE_CALLCHAIN = 32
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PERF_SAMPLE_CPU = 128
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PERF_SAMPLE_DATA_SRC = 32768
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PERF_SAMPLE_ID = 64
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PERF_SAMPLE_IDENTIFIER = 65536
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PERF_SAMPLE_IP = 1
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PERF_SAMPLE_PERIOD = 256
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PERF_SAMPLE_RAW = 1024
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PERF_SAMPLE_READ = 16
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PERF_SAMPLE_REGS_INTR = 262144
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PERF_SAMPLE_REGS_USER = 4096
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PERF_SAMPLE_STACK_USER = 8192
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PERF_SAMPLE_STREAM_ID = 512
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PERF_SAMPLE_TID = 2
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PERF_SAMPLE_TIME = 4
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PERF_SAMPLE_TRANSACTION = 131072
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PERF_SAMPLE_WEIGHT = 16384
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PERF_TYPE_BREAKPOINT = 5
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PERF_TYPE_HARDWARE = 0
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PERF_TYPE_HW_CACHE = 3
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@ -16,6 +16,46 @@ PERF_FLAG_FD_CLOEXEC = 8
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PERF_FLAG_FD_NO_GROUP = 1
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PERF_FLAG_FD_OUTPUT = 2
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PERF_FLAG_PID_CGROUP = 4
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PERF_FORMAT_GROUP = 8
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PERF_FORMAT_ID = 4
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PERF_FORMAT_TOTAL_TIME_ENABLED = 1
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PERF_FORMAT_TOTAL_TIME_RUNNING = 2
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PERF_SAMPLE_ADDR = 8
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PERF_SAMPLE_BRANCH_ABORT_TX = 128
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PERF_SAMPLE_BRANCH_ANY = 8
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PERF_SAMPLE_BRANCH_ANY_CALL = 16
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PERF_SAMPLE_BRANCH_ANY_RETURN = 32
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PERF_SAMPLE_BRANCH_CALL = 8192
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PERF_SAMPLE_BRANCH_CALL_STACK = 2048
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PERF_SAMPLE_BRANCH_COND = 1024
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PERF_SAMPLE_BRANCH_HV = 4
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PERF_SAMPLE_BRANCH_IND_CALL = 64
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PERF_SAMPLE_BRANCH_IND_JUMP = 4096
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PERF_SAMPLE_BRANCH_IN_TX = 256
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PERF_SAMPLE_BRANCH_KERNEL = 2
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PERF_SAMPLE_BRANCH_MAX = 65536
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PERF_SAMPLE_BRANCH_NO_CYCLES = 32768
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PERF_SAMPLE_BRANCH_NO_FLAGS = 16384
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PERF_SAMPLE_BRANCH_NO_TX = 512
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PERF_SAMPLE_BRANCH_STACK = 2048
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PERF_SAMPLE_BRANCH_USER = 1
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PERF_SAMPLE_CALLCHAIN = 32
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PERF_SAMPLE_CPU = 128
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PERF_SAMPLE_DATA_SRC = 32768
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PERF_SAMPLE_ID = 64
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PERF_SAMPLE_IDENTIFIER = 65536
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PERF_SAMPLE_IP = 1
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PERF_SAMPLE_PERIOD = 256
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PERF_SAMPLE_RAW = 1024
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PERF_SAMPLE_READ = 16
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PERF_SAMPLE_REGS_INTR = 262144
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PERF_SAMPLE_REGS_USER = 4096
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PERF_SAMPLE_STACK_USER = 8192
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PERF_SAMPLE_STREAM_ID = 512
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PERF_SAMPLE_TID = 2
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PERF_SAMPLE_TIME = 4
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PERF_SAMPLE_TRANSACTION = 131072
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PERF_SAMPLE_WEIGHT = 16384
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PERF_TYPE_BREAKPOINT = 5
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PERF_TYPE_HARDWARE = 0
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PERF_TYPE_HW_CACHE = 3
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@ -16,6 +16,46 @@ PERF_FLAG_FD_CLOEXEC = 8
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PERF_FLAG_FD_NO_GROUP = 1
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PERF_FLAG_FD_OUTPUT = 2
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PERF_FLAG_PID_CGROUP = 4
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PERF_FORMAT_GROUP = 8
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PERF_FORMAT_ID = 4
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PERF_FORMAT_TOTAL_TIME_ENABLED = 1
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PERF_FORMAT_TOTAL_TIME_RUNNING = 2
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PERF_SAMPLE_ADDR = 8
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PERF_SAMPLE_BRANCH_ABORT_TX = 128
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PERF_SAMPLE_BRANCH_ANY = 8
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PERF_SAMPLE_BRANCH_ANY_CALL = 16
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PERF_SAMPLE_BRANCH_ANY_RETURN = 32
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PERF_SAMPLE_BRANCH_CALL = 8192
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PERF_SAMPLE_BRANCH_CALL_STACK = 2048
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PERF_SAMPLE_BRANCH_COND = 1024
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PERF_SAMPLE_BRANCH_HV = 4
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PERF_SAMPLE_BRANCH_IND_CALL = 64
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PERF_SAMPLE_BRANCH_IND_JUMP = 4096
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PERF_SAMPLE_BRANCH_IN_TX = 256
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PERF_SAMPLE_BRANCH_KERNEL = 2
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PERF_SAMPLE_BRANCH_MAX = 65536
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PERF_SAMPLE_BRANCH_NO_CYCLES = 32768
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PERF_SAMPLE_BRANCH_NO_FLAGS = 16384
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PERF_SAMPLE_BRANCH_NO_TX = 512
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PERF_SAMPLE_BRANCH_STACK = 2048
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PERF_SAMPLE_BRANCH_USER = 1
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PERF_SAMPLE_CALLCHAIN = 32
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PERF_SAMPLE_CPU = 128
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PERF_SAMPLE_DATA_SRC = 32768
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PERF_SAMPLE_ID = 64
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PERF_SAMPLE_IDENTIFIER = 65536
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PERF_SAMPLE_IP = 1
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PERF_SAMPLE_PERIOD = 256
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PERF_SAMPLE_RAW = 1024
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PERF_SAMPLE_READ = 16
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PERF_SAMPLE_REGS_INTR = 262144
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PERF_SAMPLE_REGS_USER = 4096
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PERF_SAMPLE_STACK_USER = 8192
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PERF_SAMPLE_STREAM_ID = 512
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PERF_SAMPLE_TID = 2
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PERF_SAMPLE_TIME = 4
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PERF_SAMPLE_TRANSACTION = 131072
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PERF_SAMPLE_WEIGHT = 16384
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PERF_TYPE_BREAKPOINT = 5
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PERF_TYPE_HARDWARE = 0
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PERF_TYPE_HW_CACHE = 3
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