//------------------------------------------------
// Dump a histogram to log.
//
// Note - DO NOT change the log output format in
// this method - tools such as as_log_latency
// assume this format.
//
// TODO - print the scale so as_log_latency can
// label its columns appropriately.
//
void
histogram_dump(histogram *h)
{
int b;
uint64_t counts[N_BUCKETS];
for (b = 0; b < N_BUCKETS; b++) {
counts[b] = cf_atomic64_get(h->counts[b]);
}
int i = N_BUCKETS;
int j = 0;
uint64_t total_count = 0;
for (b = 0; b < N_BUCKETS; b++) {
if (counts[b] != 0) {
if (i > b) {
i = b;
}
j = b;
total_count += counts[b];
}
}
char buf[100];
int pos = 0;
int k = 0;
buf[0] = '\0';
cf_info(AS_INFO, "histogram dump: %s (%zu total)", h->name, total_count);
for ( ; i <= j; i++) {
if (counts[i] == 0) { // print only non-zero columns
continue;
}
int bytes = sprintf(buf + pos, " (%02d: %010zu) ", i, counts[i]);
if (bytes <= 0) {
cf_info(AS_INFO, "histogram dump error");
return;
}
pos += bytes;
if ((k & 3) == 3) { // maximum of 4 printed columns per log line
cf_info(AS_INFO, "%s", buf);
pos = 0;
buf[0] = '\0';
}
k++;
}
if (pos > 0) {
cf_info(AS_INFO, "%s", buf);
}
}
//------------------------------------------------
// Save a linear histogram "snapshot".
//
void
linear_histogram_save_info(linear_histogram *h)
{
pthread_mutex_lock(&h->info_lock);
// Write num_buckets, the bucket width, and the first bucket's count.
int i = 0;
int pos = snprintf(h->info_snapshot, INFO_SNAPSHOT_SIZE, "%d,%ld,%ld",
h->num_buckets, h->bucket_width, cf_atomic64_get(h->counts[i++]));
while (pos < INFO_SNAPSHOT_SIZE && i < h->num_buckets) {
pos += snprintf(h->info_snapshot + pos, INFO_SNAPSHOT_SIZE - pos,
",%ld", cf_atomic64_get(h->counts[i++]));
}
pthread_mutex_unlock(&h->info_lock);
}
static void
append_set_props(as_set *p_set, cf_dyn_buf *db)
{
cf_dyn_buf_append_string(db, "n_objects=");
cf_dyn_buf_append_uint64(db, cf_atomic64_get(p_set->num_elements));
cf_dyn_buf_append_char(db, ':');
cf_dyn_buf_append_string(db, "n-bytes-memory=");
cf_dyn_buf_append_uint64(db, cf_atomic64_get(p_set->n_bytes_memory));
cf_dyn_buf_append_char(db, ':');
cf_dyn_buf_append_string(db, "stop-writes-count=");
cf_dyn_buf_append_uint64(db, cf_atomic64_get(p_set->stop_writes_count));
cf_dyn_buf_append_char(db, ':');
cf_dyn_buf_append_string(db, "set-enable-xdr=");
if (cf_atomic32_get(p_set->enable_xdr) == AS_SET_ENABLE_XDR_TRUE) {
cf_dyn_buf_append_string(db, "true");
}
else if (cf_atomic32_get(p_set->enable_xdr) == AS_SET_ENABLE_XDR_FALSE) {
cf_dyn_buf_append_string(db, "false");
}
else if (cf_atomic32_get(p_set->enable_xdr) == AS_SET_ENABLE_XDR_DEFAULT) {
cf_dyn_buf_append_string(db, "use-default");
}
else {
cf_dyn_buf_append_uint32(db, cf_atomic32_get(p_set->enable_xdr));
}
cf_dyn_buf_append_char(db, ':');
cf_dyn_buf_append_string(db, "disable-eviction=");
if (IS_SET_EVICTION_DISABLED(p_set)) {
cf_dyn_buf_append_string(db, "true");
}
else {
cf_dyn_buf_append_string(db, "false");
}
cf_dyn_buf_append_char(db, ':');
cf_dyn_buf_append_string(db, "set-delete=");
if (IS_SET_DELETED(p_set)) {
cf_dyn_buf_append_string(db, "true");
}
else {
cf_dyn_buf_append_string(db, "false");
}
cf_dyn_buf_append_char(db, ';');
}
//------------------------------------------------
// Access method for total count.
//
uint64_t
linear_histogram_get_total(linear_histogram *h)
{
uint64_t total_count = 0;
for (int i = 0; i < h->num_buckets; i++) {
total_count += cf_atomic64_get(h->counts[i]);
}
return total_count;
}
//------------------------------------------------
// Dump a linear histogram to log.
//
// Note - DO NOT change the log output format in
// this method - public documentation assumes this
// format.
//
void
linear_histogram_dump(linear_histogram *h)
{
int b;
uint64_t counts[h->num_buckets];
for (b = 0; b < h->num_buckets; b++) {
counts[b] = cf_atomic64_get(h->counts[b]);
}
int i = h->num_buckets;
int j = 0;
uint64_t total_count = 0;
for (b = 0; b < h->num_buckets; b++) {
if (counts[b] != 0) {
if (i > b) {
i = b;
}
j = b;
total_count += counts[b];
}
}
char buf[100];
int pos = 0;
int k = 0;
buf[0] = '\0';
cf_debug(AS_NSUP, "linear histogram dump: %s [%u %u]/[%u] (%zu total)",
h->name, h->start, h->start + (h->num_buckets * h->bucket_width),
h->bucket_width, total_count);
for ( ; i <= j; i++) {
if (counts[i] == 0) { // print only non-zero columns
continue;
}
int bytes = sprintf(buf + pos, " (%02d: %010zu) ", i, counts[i]);
if (bytes <= 0) {
cf_debug(AS_NSUP, "linear histogram dump error");
return;
}
pos += bytes;
if ((k & 3) == 3) { // maximum of 4 printed columns per log line
cf_debug(AS_NSUP, "%s", buf);
pos = 0;
buf[0] = '\0';
}
k++;
}
if (pos > 0) {
cf_debug(AS_NSUP, "%s", buf);
}
}
