func getJemallocStats() (uint64, uint64, error) {
var js C.JemallocStats
// TODO(marc): should we panic here? Failure on fetching the stats may be a problem.
if errCode := C.jemalloc_get_stats(&js); errCode != 0 {
return 0, 0, fmt.Errorf("error code %d", errCode)
}
if log.V(2) {
// Summary of jemalloc stats:
log.Infof("jemalloc stats: allocated: %s, active: %s, metadata: %s, resident: %s, mapped: %s",
humanize.IBytes(uint64(js.allocated)), humanize.IBytes(uint64(js.active)),
humanize.IBytes(uint64(js.metadata)), humanize.IBytes(uint64(js.resident)),
humanize.IBytes(uint64(js.mapped)))
}
if log.V(3) {
// Detailed jemalloc stats (very verbose, includes per-arena stats).
C.malloc_stats_print(nil, nil, nil)
}
return uint64(js.allocated), uint64(js.resident), nil
}
func logJemallocStats() {
if log.V(3) {
C.malloc_stats_print(nil, nil, nil)
}
}
func init() {
C.malloc_stats_print(nil, nil, nil)
}
