diff options
Diffstat (limited to 'contrib/tracing/log_utxocache_flush.py')
| -rwxr-xr-x[-rw-r--r--] | contrib/tracing/log_utxocache_flush.py | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/contrib/tracing/log_utxocache_flush.py b/contrib/tracing/log_utxocache_flush.py index df55b94162..df27dc193a 100644..100755 --- a/contrib/tracing/log_utxocache_flush.py +++ b/contrib/tracing/log_utxocache_flush.py @@ -4,8 +4,8 @@ import sys import ctypes from bcc import BPF, USDT -""" Example script to log details about coins flushed by the Bitcoin client -utilizing USDT probes and the flush:flush tracepoint. """ +"""Example logging Bitcoin Core utxo set cache flushes utilizing + the utxocache:flush tracepoint.""" # USAGE: ./contrib/tracing/log_utxocache_flush.py path/to/bitcoind @@ -22,8 +22,10 @@ struct data_t bool is_flush_prune; bool is_full_flush; }; + // BPF perf buffer to push the data to user space. BPF_PERF_OUTPUT(flush); + int trace_flush(struct pt_regs *ctx) { struct data_t data = {}; bpf_usdt_readarg(1, ctx, &data.duration); @@ -45,8 +47,8 @@ FLUSH_MODES = [ ] -# define output data structure class Data(ctypes.Structure): + # define output data structure corresponding to struct data_t _fields_ = [ ("duration", ctypes.c_uint64), ("mode", ctypes.c_uint32), |