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-rw-r--r--src/core/lib/debug/stats.c107
-rw-r--r--src/core/lib/debug/stats.h17
-rw-r--r--src/core/lib/debug/stats_data.c229
-rw-r--r--src/core/lib/debug/stats_data.h150
-rw-r--r--src/core/lib/debug/stats_data.yaml70
-rw-r--r--src/core/lib/iomgr/combiner.c5
-rw-r--r--src/core/lib/iomgr/executor.c13
-rw-r--r--src/core/lib/iomgr/tcp_posix.c9
8 files changed, 588 insertions, 12 deletions
diff --git a/src/core/lib/debug/stats.c b/src/core/lib/debug/stats.c
index 4dbd94c724..91ca0aa76e 100644
--- a/src/core/lib/debug/stats.c
+++ b/src/core/lib/debug/stats.c
@@ -45,7 +45,95 @@ void grpc_stats_collect(grpc_stats_data *output) {
output->counters[i] += gpr_atm_no_barrier_load(
&grpc_stats_per_cpu_storage[core].counters[i]);
}
+ for (size_t i = 0; i < GRPC_STATS_HISTOGRAM_BUCKETS; i++) {
+ output->histograms[i] += gpr_atm_no_barrier_load(
+ &grpc_stats_per_cpu_storage[core].histograms[i]);
+ }
+ }
+}
+
+void grpc_stats_diff(const grpc_stats_data *b, const grpc_stats_data *a,
+ grpc_stats_data *c) {
+ for (size_t i = 0; i < GRPC_STATS_COUNTER_COUNT; i++) {
+ c->counters[i] = b->counters[i] - a->counters[i];
+ }
+ for (size_t i = 0; i < GRPC_STATS_HISTOGRAM_BUCKETS; i++) {
+ c->histograms[i] = b->histograms[i] - a->histograms[i];
+ }
+}
+
+int grpc_stats_histo_find_bucket_slow(grpc_exec_ctx *exec_ctx, int value,
+ const int *table, int table_size) {
+ GRPC_STATS_INC_HISTOGRAM_SLOW_LOOKUPS(exec_ctx);
+ const int *const start = table;
+ while (table_size > 0) {
+ int step = table_size / 2;
+ const int *it = table + step;
+ if (value >= *it) {
+ table = it + 1;
+ table_size -= step + 1;
+ } else {
+ table_size = step;
+ }
+ }
+ return (int)(table - start) - 1;
+}
+
+size_t grpc_stats_histo_count(const grpc_stats_data *stats,
+ grpc_stats_histograms histogram) {
+ size_t sum = 0;
+ for (int i = 0; i < grpc_stats_histo_buckets[histogram]; i++) {
+ sum += (size_t)stats->histograms[grpc_stats_histo_start[histogram] + i];
+ }
+ return sum;
+}
+
+static double threshold_for_count_below(const gpr_atm *bucket_counts,
+ const int *bucket_boundaries,
+ int num_buckets, double count_below) {
+ double count_so_far;
+ double lower_bound;
+ double upper_bound;
+ int lower_idx;
+ int upper_idx;
+
+ /* find the lowest bucket that gets us above count_below */
+ count_so_far = 0.0;
+ for (lower_idx = 0; lower_idx < num_buckets; lower_idx++) {
+ count_so_far += (double)bucket_counts[lower_idx];
+ if (count_so_far >= count_below) {
+ break;
+ }
}
+ if (count_so_far == count_below) {
+ /* this bucket hits the threshold exactly... we should be midway through
+ any run of zero values following the bucket */
+ for (upper_idx = lower_idx + 1; upper_idx < num_buckets; upper_idx++) {
+ if (bucket_counts[upper_idx]) {
+ break;
+ }
+ }
+ return (bucket_boundaries[lower_idx] + bucket_boundaries[upper_idx]) / 2.0;
+ } else {
+ /* treat values as uniform throughout the bucket, and find where this value
+ should lie */
+ lower_bound = bucket_boundaries[lower_idx];
+ upper_bound = bucket_boundaries[lower_idx + 1];
+ return upper_bound -
+ (upper_bound - lower_bound) * (count_so_far - count_below) /
+ (double)bucket_counts[lower_idx];
+ }
+}
+
+double grpc_stats_histo_percentile(const grpc_stats_data *stats,
+ grpc_stats_histograms histogram,
+ double percentile) {
+ size_t count = grpc_stats_histo_count(stats, histogram);
+ if (count == 0) return 0.0;
+ return threshold_for_count_below(
+ stats->histograms + grpc_stats_histo_start[histogram],
+ grpc_stats_histo_bucket_boundaries[histogram],
+ grpc_stats_histo_buckets[histogram], (double)count * percentile / 100.0);
}
char *grpc_stats_data_as_json(const grpc_stats_data *data) {
@@ -60,6 +148,25 @@ char *grpc_stats_data_as_json(const grpc_stats_data *data) {
gpr_strvec_add(&v, tmp);
is_first = false;
}
+ for (size_t i = 0; i < GRPC_STATS_HISTOGRAM_COUNT; i++) {
+ gpr_asprintf(&tmp, "%s\"%s\": [", is_first ? "" : ", ",
+ grpc_stats_histogram_name[i]);
+ gpr_strvec_add(&v, tmp);
+ for (int j = 0; j < grpc_stats_histo_buckets[i]; j++) {
+ gpr_asprintf(&tmp, "%s%" PRIdPTR, j == 0 ? "" : ",",
+ data->histograms[grpc_stats_histo_start[i] + j]);
+ gpr_strvec_add(&v, tmp);
+ }
+ gpr_asprintf(&tmp, "], \"%s_bkt\": [", grpc_stats_histogram_name[i]);
+ gpr_strvec_add(&v, tmp);
+ for (int j = 0; j < grpc_stats_histo_buckets[i]; j++) {
+ gpr_asprintf(&tmp, "%s%d", j == 0 ? "" : ",",
+ grpc_stats_histo_bucket_boundaries[i][j]);
+ gpr_strvec_add(&v, tmp);
+ }
+ gpr_strvec_add(&v, gpr_strdup("]"));
+ is_first = false;
+ }
gpr_strvec_add(&v, gpr_strdup("}"));
tmp = gpr_strvec_flatten(&v, NULL);
gpr_strvec_destroy(&v);
diff --git a/src/core/lib/debug/stats.h b/src/core/lib/debug/stats.h
index 563b108dff..09d190d488 100644
--- a/src/core/lib/debug/stats.h
+++ b/src/core/lib/debug/stats.h
@@ -25,6 +25,7 @@
typedef struct grpc_stats_data {
gpr_atm counters[GRPC_STATS_COUNTER_COUNT];
+ gpr_atm histograms[GRPC_STATS_HISTOGRAM_BUCKETS];
} grpc_stats_data;
extern grpc_stats_data *grpc_stats_per_cpu_storage;
@@ -36,9 +37,25 @@ extern grpc_stats_data *grpc_stats_per_cpu_storage;
(gpr_atm_no_barrier_fetch_add( \
&GRPC_THREAD_STATS_DATA((exec_ctx))->counters[(ctr)], 1))
+#define GRPC_STATS_INC_HISTOGRAM(exec_ctx, histogram, index) \
+ (gpr_atm_no_barrier_fetch_add( \
+ &GRPC_THREAD_STATS_DATA((exec_ctx)) \
+ ->histograms[histogram##_FIRST_SLOT + (index)], \
+ 1))
+
void grpc_stats_init(void);
void grpc_stats_shutdown(void);
void grpc_stats_collect(grpc_stats_data *output);
+// c = b-a
+void grpc_stats_diff(const grpc_stats_data *b, const grpc_stats_data *a,
+ grpc_stats_data *c);
char *grpc_stats_data_as_json(const grpc_stats_data *data);
+int grpc_stats_histo_find_bucket_slow(grpc_exec_ctx *exec_ctx, int value,
+ const int *table, int table_size);
+double grpc_stats_histo_percentile(const grpc_stats_data *data,
+ grpc_stats_histograms histogram,
+ double percentile);
+size_t grpc_stats_histo_count(const grpc_stats_data *data,
+ grpc_stats_histograms histogram);
#endif
diff --git a/src/core/lib/debug/stats_data.c b/src/core/lib/debug/stats_data.c
index 2203358a7e..490d257d2f 100644
--- a/src/core/lib/debug/stats_data.c
+++ b/src/core/lib/debug/stats_data.c
@@ -19,7 +19,232 @@
*/
#include "src/core/lib/debug/stats_data.h"
+#include <grpc/support/useful.h>
+#include "src/core/lib/debug/stats.h"
+#include "src/core/lib/iomgr/exec_ctx.h"
const char *grpc_stats_counter_name[GRPC_STATS_COUNTER_COUNT] = {
- "client_calls_created", "server_calls_created", "syscall_write",
- "syscall_read", "syscall_poll", "syscall_wait",
+ "client_calls_created",
+ "server_calls_created",
+ "syscall_poll",
+ "syscall_wait",
+ "histogram_slow_lookups",
+ "syscall_write",
+ "syscall_read",
+ "tcp_backup_pollers_created",
+ "tcp_backup_poller_polls",
+ "http2_op_batches",
+ "http2_op_cancel",
+ "http2_op_send_initial_metadata",
+ "http2_op_send_message",
+ "http2_op_send_trailing_metadata",
+ "http2_op_recv_initial_metadata",
+ "http2_op_recv_message",
+ "http2_op_recv_trailing_metadata",
+ "http2_pings_sent",
+ "http2_writes_begun",
+ "http2_writes_offloaded",
+ "combiner_locks_initiated",
+ "combiner_locks_scheduled_items",
+ "combiner_locks_scheduled_final_items",
+ "combiner_locks_offloaded",
+ "executor_scheduled_short_items",
+ "executor_scheduled_long_items",
+ "executor_scheduled_to_self",
+ "executor_wakeup_initiated",
+ "executor_queue_drained",
+ "executor_push_retries",
};
+const char *grpc_stats_histogram_name[GRPC_STATS_HISTOGRAM_COUNT] = {
+ "tcp_write_size", "tcp_write_iov_size", "tcp_read_size",
+ "tcp_read_offer", "tcp_read_iov_size", "http2_send_message_size",
+};
+const int grpc_stats_table_0[65] = {
+ 0, 1, 2, 3, 4, 6, 8, 11,
+ 15, 20, 26, 34, 44, 57, 73, 94,
+ 121, 155, 199, 255, 327, 419, 537, 688,
+ 881, 1128, 1444, 1848, 2365, 3026, 3872, 4954,
+ 6338, 8108, 10373, 13270, 16976, 21717, 27782, 35541,
+ 45467, 58165, 74409, 95189, 121772, 155778, 199281, 254933,
+ 326126, 417200, 533707, 682750, 873414, 1117323, 1429345, 1828502,
+ 2339127, 2992348, 3827987, 4896985, 6264509, 8013925, 10251880, 13114801,
+ 16777216};
+const uint8_t grpc_stats_table_1[87] = {
+ 0, 0, 1, 1, 2, 3, 3, 4, 4, 5, 6, 6, 7, 8, 8, 9, 10, 11,
+ 11, 12, 13, 13, 14, 15, 15, 16, 17, 17, 18, 19, 20, 20, 21, 22, 22, 23,
+ 24, 25, 25, 26, 27, 27, 28, 29, 29, 30, 31, 31, 32, 33, 34, 34, 35, 36,
+ 36, 37, 38, 39, 39, 40, 41, 41, 42, 43, 44, 44, 45, 45, 46, 47, 48, 48,
+ 49, 50, 51, 51, 52, 53, 53, 54, 55, 56, 56, 57, 58, 58, 59};
+const int grpc_stats_table_2[65] = {
+ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12,
+ 14, 16, 18, 20, 22, 24, 27, 30, 33, 36, 39, 43, 47,
+ 51, 56, 61, 66, 72, 78, 85, 92, 100, 109, 118, 128, 139,
+ 151, 164, 178, 193, 209, 226, 244, 264, 285, 308, 333, 359, 387,
+ 418, 451, 486, 524, 565, 609, 656, 707, 762, 821, 884, 952, 1024};
+const uint8_t grpc_stats_table_3[102] = {
+ 0, 0, 0, 1, 1, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6,
+ 6, 7, 7, 7, 8, 8, 9, 9, 10, 11, 11, 12, 12, 13, 13, 14, 14,
+ 14, 15, 15, 16, 16, 17, 17, 18, 19, 19, 20, 20, 21, 21, 22, 22, 23,
+ 23, 24, 24, 24, 25, 26, 27, 27, 28, 28, 29, 29, 30, 30, 31, 31, 32,
+ 32, 33, 33, 34, 35, 35, 36, 37, 37, 38, 38, 39, 39, 40, 40, 41, 41,
+ 42, 42, 43, 44, 44, 45, 46, 46, 47, 48, 48, 49, 49, 50, 50, 51, 51};
+void grpc_stats_inc_tcp_write_size(grpc_exec_ctx *exec_ctx, int value) {
+ value = GPR_CLAMP(value, 0, 16777216);
+ if (value < 5) {
+ GRPC_STATS_INC_HISTOGRAM((exec_ctx), GRPC_STATS_HISTOGRAM_TCP_WRITE_SIZE,
+ value);
+ return;
+ }
+ union {
+ double dbl;
+ uint64_t uint;
+ } _val, _bkt;
+ _val.dbl = value;
+ if (_val.uint < 4683743612465315840ull) {
+ int bucket =
+ grpc_stats_table_1[((_val.uint - 4617315517961601024ull) >> 50)] + 5;
+ _bkt.dbl = grpc_stats_table_0[bucket];
+ bucket -= (_val.uint < _bkt.uint);
+ GRPC_STATS_INC_HISTOGRAM((exec_ctx), GRPC_STATS_HISTOGRAM_TCP_WRITE_SIZE,
+ bucket);
+ return;
+ }
+ GRPC_STATS_INC_HISTOGRAM((exec_ctx), GRPC_STATS_HISTOGRAM_TCP_WRITE_SIZE,
+ grpc_stats_histo_find_bucket_slow(
+ (exec_ctx), value, grpc_stats_table_0, 64));
+}
+void grpc_stats_inc_tcp_write_iov_size(grpc_exec_ctx *exec_ctx, int value) {
+ value = GPR_CLAMP(value, 0, 1024);
+ if (value < 13) {
+ GRPC_STATS_INC_HISTOGRAM((exec_ctx),
+ GRPC_STATS_HISTOGRAM_TCP_WRITE_IOV_SIZE, value);
+ return;
+ }
+ union {
+ double dbl;
+ uint64_t uint;
+ } _val, _bkt;
+ _val.dbl = value;
+ if (_val.uint < 4637863191261478912ull) {
+ int bucket =
+ grpc_stats_table_3[((_val.uint - 4623507967449235456ull) >> 48)] + 13;
+ _bkt.dbl = grpc_stats_table_2[bucket];
+ bucket -= (_val.uint < _bkt.uint);
+ GRPC_STATS_INC_HISTOGRAM((exec_ctx),
+ GRPC_STATS_HISTOGRAM_TCP_WRITE_IOV_SIZE, bucket);
+ return;
+ }
+ GRPC_STATS_INC_HISTOGRAM((exec_ctx), GRPC_STATS_HISTOGRAM_TCP_WRITE_IOV_SIZE,
+ grpc_stats_histo_find_bucket_slow(
+ (exec_ctx), value, grpc_stats_table_2, 64));
+}
+void grpc_stats_inc_tcp_read_size(grpc_exec_ctx *exec_ctx, int value) {
+ value = GPR_CLAMP(value, 0, 16777216);
+ if (value < 5) {
+ GRPC_STATS_INC_HISTOGRAM((exec_ctx), GRPC_STATS_HISTOGRAM_TCP_READ_SIZE,
+ value);
+ return;
+ }
+ union {
+ double dbl;
+ uint64_t uint;
+ } _val, _bkt;
+ _val.dbl = value;
+ if (_val.uint < 4683743612465315840ull) {
+ int bucket =
+ grpc_stats_table_1[((_val.uint - 4617315517961601024ull) >> 50)] + 5;
+ _bkt.dbl = grpc_stats_table_0[bucket];
+ bucket -= (_val.uint < _bkt.uint);
+ GRPC_STATS_INC_HISTOGRAM((exec_ctx), GRPC_STATS_HISTOGRAM_TCP_READ_SIZE,
+ bucket);
+ return;
+ }
+ GRPC_STATS_INC_HISTOGRAM((exec_ctx), GRPC_STATS_HISTOGRAM_TCP_READ_SIZE,
+ grpc_stats_histo_find_bucket_slow(
+ (exec_ctx), value, grpc_stats_table_0, 64));
+}
+void grpc_stats_inc_tcp_read_offer(grpc_exec_ctx *exec_ctx, int value) {
+ value = GPR_CLAMP(value, 0, 16777216);
+ if (value < 5) {
+ GRPC_STATS_INC_HISTOGRAM((exec_ctx), GRPC_STATS_HISTOGRAM_TCP_READ_OFFER,
+ value);
+ return;
+ }
+ union {
+ double dbl;
+ uint64_t uint;
+ } _val, _bkt;
+ _val.dbl = value;
+ if (_val.uint < 4683743612465315840ull) {
+ int bucket =
+ grpc_stats_table_1[((_val.uint - 4617315517961601024ull) >> 50)] + 5;
+ _bkt.dbl = grpc_stats_table_0[bucket];
+ bucket -= (_val.uint < _bkt.uint);
+ GRPC_STATS_INC_HISTOGRAM((exec_ctx), GRPC_STATS_HISTOGRAM_TCP_READ_OFFER,
+ bucket);
+ return;
+ }
+ GRPC_STATS_INC_HISTOGRAM((exec_ctx), GRPC_STATS_HISTOGRAM_TCP_READ_OFFER,
+ grpc_stats_histo_find_bucket_slow(
+ (exec_ctx), value, grpc_stats_table_0, 64));
+}
+void grpc_stats_inc_tcp_read_iov_size(grpc_exec_ctx *exec_ctx, int value) {
+ value = GPR_CLAMP(value, 0, 1024);
+ if (value < 13) {
+ GRPC_STATS_INC_HISTOGRAM((exec_ctx), GRPC_STATS_HISTOGRAM_TCP_READ_IOV_SIZE,
+ value);
+ return;
+ }
+ union {
+ double dbl;
+ uint64_t uint;
+ } _val, _bkt;
+ _val.dbl = value;
+ if (_val.uint < 4637863191261478912ull) {
+ int bucket =
+ grpc_stats_table_3[((_val.uint - 4623507967449235456ull) >> 48)] + 13;
+ _bkt.dbl = grpc_stats_table_2[bucket];
+ bucket -= (_val.uint < _bkt.uint);
+ GRPC_STATS_INC_HISTOGRAM((exec_ctx), GRPC_STATS_HISTOGRAM_TCP_READ_IOV_SIZE,
+ bucket);
+ return;
+ }
+ GRPC_STATS_INC_HISTOGRAM((exec_ctx), GRPC_STATS_HISTOGRAM_TCP_READ_IOV_SIZE,
+ grpc_stats_histo_find_bucket_slow(
+ (exec_ctx), value, grpc_stats_table_2, 64));
+}
+void grpc_stats_inc_http2_send_message_size(grpc_exec_ctx *exec_ctx,
+ int value) {
+ value = GPR_CLAMP(value, 0, 16777216);
+ if (value < 5) {
+ GRPC_STATS_INC_HISTOGRAM(
+ (exec_ctx), GRPC_STATS_HISTOGRAM_HTTP2_SEND_MESSAGE_SIZE, value);
+ return;
+ }
+ union {
+ double dbl;
+ uint64_t uint;
+ } _val, _bkt;
+ _val.dbl = value;
+ if (_val.uint < 4683743612465315840ull) {
+ int bucket =
+ grpc_stats_table_1[((_val.uint - 4617315517961601024ull) >> 50)] + 5;
+ _bkt.dbl = grpc_stats_table_0[bucket];
+ bucket -= (_val.uint < _bkt.uint);
+ GRPC_STATS_INC_HISTOGRAM(
+ (exec_ctx), GRPC_STATS_HISTOGRAM_HTTP2_SEND_MESSAGE_SIZE, bucket);
+ return;
+ }
+ GRPC_STATS_INC_HISTOGRAM((exec_ctx),
+ GRPC_STATS_HISTOGRAM_HTTP2_SEND_MESSAGE_SIZE,
+ grpc_stats_histo_find_bucket_slow(
+ (exec_ctx), value, grpc_stats_table_0, 64));
+}
+const int grpc_stats_histo_buckets[6] = {64, 64, 64, 64, 64, 64};
+const int grpc_stats_histo_start[6] = {0, 64, 128, 192, 256, 320};
+const int *const grpc_stats_histo_bucket_boundaries[6] = {
+ grpc_stats_table_0, grpc_stats_table_2, grpc_stats_table_0,
+ grpc_stats_table_0, grpc_stats_table_2, grpc_stats_table_0};
+void (*const grpc_stats_inc_histogram[6])(grpc_exec_ctx *exec_ctx, int x) = {
+ grpc_stats_inc_tcp_write_size, grpc_stats_inc_tcp_write_iov_size,
+ grpc_stats_inc_tcp_read_size, grpc_stats_inc_tcp_read_offer,
+ grpc_stats_inc_tcp_read_iov_size, grpc_stats_inc_http2_send_message_size};
diff --git a/src/core/lib/debug/stats_data.h b/src/core/lib/debug/stats_data.h
index c9c2f65c30..b0f5946eb0 100644
--- a/src/core/lib/debug/stats_data.h
+++ b/src/core/lib/debug/stats_data.h
@@ -21,27 +21,163 @@
#ifndef GRPC_CORE_LIB_DEBUG_STATS_DATA_H
#define GRPC_CORE_LIB_DEBUG_STATS_DATA_H
+#include <inttypes.h>
+#include "src/core/lib/iomgr/exec_ctx.h"
+
typedef enum {
GRPC_STATS_COUNTER_CLIENT_CALLS_CREATED,
GRPC_STATS_COUNTER_SERVER_CALLS_CREATED,
- GRPC_STATS_COUNTER_SYSCALL_WRITE,
- GRPC_STATS_COUNTER_SYSCALL_READ,
GRPC_STATS_COUNTER_SYSCALL_POLL,
GRPC_STATS_COUNTER_SYSCALL_WAIT,
+ GRPC_STATS_COUNTER_HISTOGRAM_SLOW_LOOKUPS,
+ GRPC_STATS_COUNTER_SYSCALL_WRITE,
+ GRPC_STATS_COUNTER_SYSCALL_READ,
+ GRPC_STATS_COUNTER_TCP_BACKUP_POLLERS_CREATED,
+ GRPC_STATS_COUNTER_TCP_BACKUP_POLLER_POLLS,
+ GRPC_STATS_COUNTER_HTTP2_OP_BATCHES,
+ GRPC_STATS_COUNTER_HTTP2_OP_CANCEL,
+ GRPC_STATS_COUNTER_HTTP2_OP_SEND_INITIAL_METADATA,
+ GRPC_STATS_COUNTER_HTTP2_OP_SEND_MESSAGE,
+ GRPC_STATS_COUNTER_HTTP2_OP_SEND_TRAILING_METADATA,
+ GRPC_STATS_COUNTER_HTTP2_OP_RECV_INITIAL_METADATA,
+ GRPC_STATS_COUNTER_HTTP2_OP_RECV_MESSAGE,
+ GRPC_STATS_COUNTER_HTTP2_OP_RECV_TRAILING_METADATA,
+ GRPC_STATS_COUNTER_HTTP2_PINGS_SENT,
+ GRPC_STATS_COUNTER_HTTP2_WRITES_BEGUN,
+ GRPC_STATS_COUNTER_HTTP2_WRITES_OFFLOADED,
+ GRPC_STATS_COUNTER_COMBINER_LOCKS_INITIATED,
+ GRPC_STATS_COUNTER_COMBINER_LOCKS_SCHEDULED_ITEMS,
+ GRPC_STATS_COUNTER_COMBINER_LOCKS_SCHEDULED_FINAL_ITEMS,
+ GRPC_STATS_COUNTER_COMBINER_LOCKS_OFFLOADED,
+ GRPC_STATS_COUNTER_EXECUTOR_SCHEDULED_SHORT_ITEMS,
+ GRPC_STATS_COUNTER_EXECUTOR_SCHEDULED_LONG_ITEMS,
+ GRPC_STATS_COUNTER_EXECUTOR_SCHEDULED_TO_SELF,
+ GRPC_STATS_COUNTER_EXECUTOR_WAKEUP_INITIATED,
+ GRPC_STATS_COUNTER_EXECUTOR_QUEUE_DRAINED,
+ GRPC_STATS_COUNTER_EXECUTOR_PUSH_RETRIES,
GRPC_STATS_COUNTER_COUNT
} grpc_stats_counters;
+extern const char *grpc_stats_counter_name[GRPC_STATS_COUNTER_COUNT];
+typedef enum {
+ GRPC_STATS_HISTOGRAM_TCP_WRITE_SIZE,
+ GRPC_STATS_HISTOGRAM_TCP_WRITE_IOV_SIZE,
+ GRPC_STATS_HISTOGRAM_TCP_READ_SIZE,
+ GRPC_STATS_HISTOGRAM_TCP_READ_OFFER,
+ GRPC_STATS_HISTOGRAM_TCP_READ_IOV_SIZE,
+ GRPC_STATS_HISTOGRAM_HTTP2_SEND_MESSAGE_SIZE,
+ GRPC_STATS_HISTOGRAM_COUNT
+} grpc_stats_histograms;
+extern const char *grpc_stats_histogram_name[GRPC_STATS_HISTOGRAM_COUNT];
+typedef enum {
+ GRPC_STATS_HISTOGRAM_TCP_WRITE_SIZE_FIRST_SLOT = 0,
+ GRPC_STATS_HISTOGRAM_TCP_WRITE_SIZE_BUCKETS = 64,
+ GRPC_STATS_HISTOGRAM_TCP_WRITE_IOV_SIZE_FIRST_SLOT = 64,
+ GRPC_STATS_HISTOGRAM_TCP_WRITE_IOV_SIZE_BUCKETS = 64,
+ GRPC_STATS_HISTOGRAM_TCP_READ_SIZE_FIRST_SLOT = 128,
+ GRPC_STATS_HISTOGRAM_TCP_READ_SIZE_BUCKETS = 64,
+ GRPC_STATS_HISTOGRAM_TCP_READ_OFFER_FIRST_SLOT = 192,
+ GRPC_STATS_HISTOGRAM_TCP_READ_OFFER_BUCKETS = 64,
+ GRPC_STATS_HISTOGRAM_TCP_READ_IOV_SIZE_FIRST_SLOT = 256,
+ GRPC_STATS_HISTOGRAM_TCP_READ_IOV_SIZE_BUCKETS = 64,
+ GRPC_STATS_HISTOGRAM_HTTP2_SEND_MESSAGE_SIZE_FIRST_SLOT = 320,
+ GRPC_STATS_HISTOGRAM_HTTP2_SEND_MESSAGE_SIZE_BUCKETS = 64,
+ GRPC_STATS_HISTOGRAM_BUCKETS = 384
+} grpc_stats_histogram_constants;
#define GRPC_STATS_INC_CLIENT_CALLS_CREATED(exec_ctx) \
GRPC_STATS_INC_COUNTER((exec_ctx), GRPC_STATS_COUNTER_CLIENT_CALLS_CREATED)
#define GRPC_STATS_INC_SERVER_CALLS_CREATED(exec_ctx) \
GRPC_STATS_INC_COUNTER((exec_ctx), GRPC_STATS_COUNTER_SERVER_CALLS_CREATED)
-#define GRPC_STATS_INC_SYSCALL_WRITE(exec_ctx) \
- GRPC_STATS_INC_COUNTER((exec_ctx), GRPC_STATS_COUNTER_SYSCALL_WRITE)
-#define GRPC_STATS_INC_SYSCALL_READ(exec_ctx) \
- GRPC_STATS_INC_COUNTER((exec_ctx), GRPC_STATS_COUNTER_SYSCALL_READ)
#define GRPC_STATS_INC_SYSCALL_POLL(exec_ctx) \
GRPC_STATS_INC_COUNTER((exec_ctx), GRPC_STATS_COUNTER_SYSCALL_POLL)
#define GRPC_STATS_INC_SYSCALL_WAIT(exec_ctx) \
GRPC_STATS_INC_COUNTER((exec_ctx), GRPC_STATS_COUNTER_SYSCALL_WAIT)
-extern const char *grpc_stats_counter_name[GRPC_STATS_COUNTER_COUNT];
+#define GRPC_STATS_INC_HISTOGRAM_SLOW_LOOKUPS(exec_ctx) \
+ GRPC_STATS_INC_COUNTER((exec_ctx), GRPC_STATS_COUNTER_HISTOGRAM_SLOW_LOOKUPS)
+#define GRPC_STATS_INC_SYSCALL_WRITE(exec_ctx) \
+ GRPC_STATS_INC_COUNTER((exec_ctx), GRPC_STATS_COUNTER_SYSCALL_WRITE)
+#define GRPC_STATS_INC_SYSCALL_READ(exec_ctx) \
+ GRPC_STATS_INC_COUNTER((exec_ctx), GRPC_STATS_COUNTER_SYSCALL_READ)
+#define GRPC_STATS_INC_TCP_BACKUP_POLLERS_CREATED(exec_ctx) \
+ GRPC_STATS_INC_COUNTER((exec_ctx), \
+ GRPC_STATS_COUNTER_TCP_BACKUP_POLLERS_CREATED)
+#define GRPC_STATS_INC_TCP_BACKUP_POLLER_POLLS(exec_ctx) \
+ GRPC_STATS_INC_COUNTER((exec_ctx), GRPC_STATS_COUNTER_TCP_BACKUP_POLLER_POLLS)
+#define GRPC_STATS_INC_HTTP2_OP_BATCHES(exec_ctx) \
+ GRPC_STATS_INC_COUNTER((exec_ctx), GRPC_STATS_COUNTER_HTTP2_OP_BATCHES)
+#define GRPC_STATS_INC_HTTP2_OP_CANCEL(exec_ctx) \
+ GRPC_STATS_INC_COUNTER((exec_ctx), GRPC_STATS_COUNTER_HTTP2_OP_CANCEL)
+#define GRPC_STATS_INC_HTTP2_OP_SEND_INITIAL_METADATA(exec_ctx) \
+ GRPC_STATS_INC_COUNTER((exec_ctx), \
+ GRPC_STATS_COUNTER_HTTP2_OP_SEND_INITIAL_METADATA)
+#define GRPC_STATS_INC_HTTP2_OP_SEND_MESSAGE(exec_ctx) \
+ GRPC_STATS_INC_COUNTER((exec_ctx), GRPC_STATS_COUNTER_HTTP2_OP_SEND_MESSAGE)
+#define GRPC_STATS_INC_HTTP2_OP_SEND_TRAILING_METADATA(exec_ctx) \
+ GRPC_STATS_INC_COUNTER((exec_ctx), \
+ GRPC_STATS_COUNTER_HTTP2_OP_SEND_TRAILING_METADATA)
+#define GRPC_STATS_INC_HTTP2_OP_RECV_INITIAL_METADATA(exec_ctx) \
+ GRPC_STATS_INC_COUNTER((exec_ctx), \
+ GRPC_STATS_COUNTER_HTTP2_OP_RECV_INITIAL_METADATA)
+#define GRPC_STATS_INC_HTTP2_OP_RECV_MESSAGE(exec_ctx) \
+ GRPC_STATS_INC_COUNTER((exec_ctx), GRPC_STATS_COUNTER_HTTP2_OP_RECV_MESSAGE)
+#define GRPC_STATS_INC_HTTP2_OP_RECV_TRAILING_METADATA(exec_ctx) \
+ GRPC_STATS_INC_COUNTER((exec_ctx), \
+ GRPC_STATS_COUNTER_HTTP2_OP_RECV_TRAILING_METADATA)
+#define GRPC_STATS_INC_HTTP2_PINGS_SENT(exec_ctx) \
+ GRPC_STATS_INC_COUNTER((exec_ctx), GRPC_STATS_COUNTER_HTTP2_PINGS_SENT)
+#define GRPC_STATS_INC_HTTP2_WRITES_BEGUN(exec_ctx) \
+ GRPC_STATS_INC_COUNTER((exec_ctx), GRPC_STATS_COUNTER_HTTP2_WRITES_BEGUN)
+#define GRPC_STATS_INC_HTTP2_WRITES_OFFLOADED(exec_ctx) \
+ GRPC_STATS_INC_COUNTER((exec_ctx), GRPC_STATS_COUNTER_HTTP2_WRITES_OFFLOADED)
+#define GRPC_STATS_INC_COMBINER_LOCKS_INITIATED(exec_ctx) \
+ GRPC_STATS_INC_COUNTER((exec_ctx), \
+ GRPC_STATS_COUNTER_COMBINER_LOCKS_INITIATED)
+#define GRPC_STATS_INC_COMBINER_LOCKS_SCHEDULED_ITEMS(exec_ctx) \
+ GRPC_STATS_INC_COUNTER((exec_ctx), \
+ GRPC_STATS_COUNTER_COMBINER_LOCKS_SCHEDULED_ITEMS)
+#define GRPC_STATS_INC_COMBINER_LOCKS_SCHEDULED_FINAL_ITEMS(exec_ctx) \
+ GRPC_STATS_INC_COUNTER( \
+ (exec_ctx), GRPC_STATS_COUNTER_COMBINER_LOCKS_SCHEDULED_FINAL_ITEMS)
+#define GRPC_STATS_INC_COMBINER_LOCKS_OFFLOADED(exec_ctx) \
+ GRPC_STATS_INC_COUNTER((exec_ctx), \
+ GRPC_STATS_COUNTER_COMBINER_LOCKS_OFFLOADED)
+#define GRPC_STATS_INC_EXECUTOR_SCHEDULED_SHORT_ITEMS(exec_ctx) \
+ GRPC_STATS_INC_COUNTER((exec_ctx), \
+ GRPC_STATS_COUNTER_EXECUTOR_SCHEDULED_SHORT_ITEMS)
+#define GRPC_STATS_INC_EXECUTOR_SCHEDULED_LONG_ITEMS(exec_ctx) \
+ GRPC_STATS_INC_COUNTER((exec_ctx), \
+ GRPC_STATS_COUNTER_EXECUTOR_SCHEDULED_LONG_ITEMS)
+#define GRPC_STATS_INC_EXECUTOR_SCHEDULED_TO_SELF(exec_ctx) \
+ GRPC_STATS_INC_COUNTER((exec_ctx), \
+ GRPC_STATS_COUNTER_EXECUTOR_SCHEDULED_TO_SELF)
+#define GRPC_STATS_INC_EXECUTOR_WAKEUP_INITIATED(exec_ctx) \
+ GRPC_STATS_INC_COUNTER((exec_ctx), \
+ GRPC_STATS_COUNTER_EXECUTOR_WAKEUP_INITIATED)
+#define GRPC_STATS_INC_EXECUTOR_QUEUE_DRAINED(exec_ctx) \
+ GRPC_STATS_INC_COUNTER((exec_ctx), GRPC_STATS_COUNTER_EXECUTOR_QUEUE_DRAINED)
+#define GRPC_STATS_INC_EXECUTOR_PUSH_RETRIES(exec_ctx) \
+ GRPC_STATS_INC_COUNTER((exec_ctx), GRPC_STATS_COUNTER_EXECUTOR_PUSH_RETRIES)
+#define GRPC_STATS_INC_TCP_WRITE_SIZE(exec_ctx, value) \
+ grpc_stats_inc_tcp_write_size((exec_ctx), (int)(value))
+void grpc_stats_inc_tcp_write_size(grpc_exec_ctx *exec_ctx, int x);
+#define GRPC_STATS_INC_TCP_WRITE_IOV_SIZE(exec_ctx, value) \
+ grpc_stats_inc_tcp_write_iov_size((exec_ctx), (int)(value))
+void grpc_stats_inc_tcp_write_iov_size(grpc_exec_ctx *exec_ctx, int x);
+#define GRPC_STATS_INC_TCP_READ_SIZE(exec_ctx, value) \
+ grpc_stats_inc_tcp_read_size((exec_ctx), (int)(value))
+void grpc_stats_inc_tcp_read_size(grpc_exec_ctx *exec_ctx, int x);
+#define GRPC_STATS_INC_TCP_READ_OFFER(exec_ctx, value) \
+ grpc_stats_inc_tcp_read_offer((exec_ctx), (int)(value))
+void grpc_stats_inc_tcp_read_offer(grpc_exec_ctx *exec_ctx, int x);
+#define GRPC_STATS_INC_TCP_READ_IOV_SIZE(exec_ctx, value) \
+ grpc_stats_inc_tcp_read_iov_size((exec_ctx), (int)(value))
+void grpc_stats_inc_tcp_read_iov_size(grpc_exec_ctx *exec_ctx, int x);
+#define GRPC_STATS_INC_HTTP2_SEND_MESSAGE_SIZE(exec_ctx, value) \
+ grpc_stats_inc_http2_send_message_size((exec_ctx), (int)(value))
+void grpc_stats_inc_http2_send_message_size(grpc_exec_ctx *exec_ctx, int x);
+extern const int grpc_stats_histo_buckets[6];
+extern const int grpc_stats_histo_start[6];
+extern const int *const grpc_stats_histo_bucket_boundaries[6];
+extern void (*const grpc_stats_inc_histogram[6])(grpc_exec_ctx *exec_ctx,
+ int x);
#endif /* GRPC_CORE_LIB_DEBUG_STATS_DATA_H */
diff --git a/src/core/lib/debug/stats_data.yaml b/src/core/lib/debug/stats_data.yaml
index 8afe48f5cd..64eb4df6d1 100644
--- a/src/core/lib/debug/stats_data.yaml
+++ b/src/core/lib/debug/stats_data.yaml
@@ -1,9 +1,73 @@
+# Copyright 2017 gRPC authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
# Stats data declaration
-# use tools/codegen/core/gen_stats_data.py to turn this into stats_data.h
+# use tools / codegen / core / gen_stats_data.py to turn this into stats_data.h
+# overall
- counter: client_calls_created
- counter: server_calls_created
-- counter: syscall_write
-- counter: syscall_read
+# polling
- counter: syscall_poll
- counter: syscall_wait
+# stats system
+- counter: histogram_slow_lookups
+# tcp
+- counter: syscall_write
+- counter: syscall_read
+- histogram: tcp_write_size
+ max: 16777216 # 16 meg max write tracked
+ buckets: 64
+- histogram: tcp_write_iov_size
+ max: 1024
+ buckets: 64
+- histogram: tcp_read_size
+ max: 16777216
+ buckets: 64
+- histogram: tcp_read_offer
+ max: 16777216
+ buckets: 64
+- histogram: tcp_read_iov_size
+ max: 1024
+ buckets: 64
+- counter: tcp_backup_pollers_created
+- counter: tcp_backup_poller_polls
+# chttp2
+- counter: http2_op_batches
+- counter: http2_op_cancel
+- counter: http2_op_send_initial_metadata
+- counter: http2_op_send_message
+- counter: http2_op_send_trailing_metadata
+- counter: http2_op_recv_initial_metadata
+- counter: http2_op_recv_message
+- counter: http2_op_recv_trailing_metadata
+- histogram: http2_send_message_size
+ max: 16777216
+ buckets: 64
+- counter: http2_pings_sent
+- counter: http2_writes_begun
+- counter: http2_writes_offloaded
+# combiner locks
+- counter: combiner_locks_initiated
+- counter: combiner_locks_scheduled_items
+- counter: combiner_locks_scheduled_final_items
+- counter: combiner_locks_offloaded
+# executor
+- counter: executor_scheduled_short_items
+- counter: executor_scheduled_long_items
+- counter: executor_scheduled_to_self
+- counter: executor_wakeup_initiated
+- counter: executor_queue_drained
+- counter: executor_push_retries
+
diff --git a/src/core/lib/iomgr/combiner.c b/src/core/lib/iomgr/combiner.c
index 0e496829f6..c2c2f01f7e 100644
--- a/src/core/lib/iomgr/combiner.c
+++ b/src/core/lib/iomgr/combiner.c
@@ -24,6 +24,7 @@
#include <grpc/support/alloc.h>
#include <grpc/support/log.h>
+#include "src/core/lib/debug/stats.h"
#include "src/core/lib/iomgr/executor.h"
#include "src/core/lib/profiling/timers.h"
@@ -154,6 +155,7 @@ static void push_first_on_exec_ctx(grpc_exec_ctx *exec_ctx,
static void combiner_exec(grpc_exec_ctx *exec_ctx, grpc_closure *cl,
grpc_error *error) {
+ GRPC_STATS_INC_COMBINER_LOCKS_SCHEDULED_ITEMS(exec_ctx);
GPR_TIMER_BEGIN("combiner.execute", 0);
grpc_combiner *lock = COMBINER_FROM_CLOSURE_SCHEDULER(cl, scheduler);
gpr_atm last = gpr_atm_full_fetch_add(&lock->state, STATE_ELEM_COUNT_LOW_BIT);
@@ -161,6 +163,7 @@ static void combiner_exec(grpc_exec_ctx *exec_ctx, grpc_closure *cl,
"C:%p grpc_combiner_execute c=%p last=%" PRIdPTR,
lock, cl, last));
if (last == 1) {
+ GRPC_STATS_INC_COMBINER_LOCKS_INITIATED(exec_ctx);
gpr_atm_no_barrier_store(&lock->initiating_exec_ctx_or_null,
(gpr_atm)exec_ctx);
// first element on this list: add it to the list of combiner locks
@@ -196,6 +199,7 @@ static void offload(grpc_exec_ctx *exec_ctx, void *arg, grpc_error *error) {
}
static void queue_offload(grpc_exec_ctx *exec_ctx, grpc_combiner *lock) {
+ GRPC_STATS_INC_COMBINER_LOCKS_OFFLOADED(exec_ctx);
move_next(exec_ctx);
GRPC_COMBINER_TRACE(gpr_log(GPR_DEBUG, "C:%p queue_offload", lock));
GRPC_CLOSURE_SCHED(exec_ctx, &lock->offload, GRPC_ERROR_NONE);
@@ -326,6 +330,7 @@ static void enqueue_finally(grpc_exec_ctx *exec_ctx, void *closure,
static void combiner_finally_exec(grpc_exec_ctx *exec_ctx,
grpc_closure *closure, grpc_error *error) {
+ GRPC_STATS_INC_COMBINER_LOCKS_SCHEDULED_FINAL_ITEMS(exec_ctx);
grpc_combiner *lock =
COMBINER_FROM_CLOSURE_SCHEDULER(closure, finally_scheduler);
GRPC_COMBINER_TRACE(gpr_log(GPR_DEBUG,
diff --git a/src/core/lib/iomgr/executor.c b/src/core/lib/iomgr/executor.c
index 8496ce23c0..a41c43edfd 100644
--- a/src/core/lib/iomgr/executor.c
+++ b/src/core/lib/iomgr/executor.c
@@ -28,6 +28,7 @@
#include <grpc/support/tls.h>
#include <grpc/support/useful.h>
+#include "src/core/lib/debug/stats.h"
#include "src/core/lib/iomgr/exec_ctx.h"
#include "src/core/lib/support/spinlock.h"
@@ -168,6 +169,7 @@ static void executor_thread(void *arg) {
gpr_mu_unlock(&ts->mu);
break;
}
+ GRPC_STATS_INC_EXECUTOR_QUEUE_DRAINED(&exec_ctx);
grpc_closure_list exec = ts->elems;
ts->elems = (grpc_closure_list)GRPC_CLOSURE_LIST_INIT;
gpr_mu_unlock(&ts->mu);
@@ -183,6 +185,11 @@ static void executor_thread(void *arg) {
static void executor_push(grpc_exec_ctx *exec_ctx, grpc_closure *closure,
grpc_error *error, bool is_short) {
bool retry_push;
+ if (is_short) {
+ GRPC_STATS_INC_EXECUTOR_SCHEDULED_SHORT_ITEMS(exec_ctx);
+ } else {
+ GRPC_STATS_INC_EXECUTOR_SCHEDULED_LONG_ITEMS(exec_ctx);
+ }
do {
retry_push = false;
size_t cur_thread_count = (size_t)gpr_atm_no_barrier_load(&g_cur_threads);
@@ -201,6 +208,8 @@ static void executor_push(grpc_exec_ctx *exec_ctx, grpc_closure *closure,
thread_state *ts = (thread_state *)gpr_tls_get(&g_this_thread_state);
if (ts == NULL) {
ts = &g_thread_state[GPR_HASH_POINTER(exec_ctx, cur_thread_count)];
+ } else {
+ GRPC_STATS_INC_EXECUTOR_SCHEDULED_TO_SELF(exec_ctx);
}
thread_state *orig_ts = ts;
@@ -232,6 +241,7 @@ static void executor_push(grpc_exec_ctx *exec_ctx, grpc_closure *closure,
continue;
}
if (grpc_closure_list_empty(ts->elems)) {
+ GRPC_STATS_INC_EXECUTOR_WAKEUP_INITIATED(exec_ctx);
gpr_cv_signal(&ts->cv);
}
grpc_closure_list_append(&ts->elems, closure, error);
@@ -254,6 +264,9 @@ static void executor_push(grpc_exec_ctx *exec_ctx, grpc_closure *closure,
}
gpr_spinlock_unlock(&g_adding_thread_lock);
}
+ if (retry_push) {
+ GRPC_STATS_INC_EXECUTOR_PUSH_RETRIES(exec_ctx);
+ }
} while (retry_push);
}
diff --git a/src/core/lib/iomgr/tcp_posix.c b/src/core/lib/iomgr/tcp_posix.c
index b15b6d8746..fba2bc017b 100644
--- a/src/core/lib/iomgr/tcp_posix.c
+++ b/src/core/lib/iomgr/tcp_posix.c
@@ -138,6 +138,7 @@ static void run_poller(grpc_exec_ctx *exec_ctx, void *bp,
gpr_timespec now = gpr_now(GPR_CLOCK_MONOTONIC);
gpr_timespec deadline =
gpr_time_add(now, gpr_time_from_seconds(10, GPR_TIMESPAN));
+ GRPC_STATS_INC_TCP_BACKUP_POLLER_POLLS(exec_ctx);
GRPC_LOG_IF_ERROR("backup_poller:pollset_work",
grpc_pollset_work(exec_ctx, BACKUP_POLLER_POLLSET(p), NULL,
now, deadline));
@@ -186,6 +187,7 @@ static void cover_self(grpc_exec_ctx *exec_ctx, grpc_tcp *tcp) {
2 + (int)old_count);
}
if (old_count == 0) {
+ GRPC_STATS_INC_TCP_BACKUP_POLLERS_CREATED(exec_ctx);
p = (backup_poller *)gpr_malloc(sizeof(*p) + grpc_pollset_size());
if (GRPC_TRACER_ON(grpc_tcp_trace)) {
gpr_log(GPR_DEBUG, "BACKUP_POLLER:%p create", p);
@@ -396,6 +398,9 @@ static void tcp_do_read(grpc_exec_ctx *exec_ctx, grpc_tcp *tcp) {
msg.msg_controllen = 0;
msg.msg_flags = 0;
+ GRPC_STATS_INC_TCP_READ_OFFER(exec_ctx, tcp->incoming_buffer->length);
+ GRPC_STATS_INC_TCP_READ_IOV_SIZE(exec_ctx, tcp->incoming_buffer->count);
+
GPR_TIMER_BEGIN("recvmsg", 0);
do {
GRPC_STATS_INC_SYSCALL_READ(exec_ctx);
@@ -426,6 +431,7 @@ static void tcp_do_read(grpc_exec_ctx *exec_ctx, grpc_tcp *tcp) {
GRPC_ERROR_CREATE_FROM_STATIC_STRING("Socket closed"), tcp));
TCP_UNREF(exec_ctx, tcp, "read");
} else {
+ GRPC_STATS_INC_TCP_READ_SIZE(exec_ctx, read_bytes);
add_to_estimate(tcp, (size_t)read_bytes);
GPR_ASSERT((size_t)read_bytes <= tcp->incoming_buffer->length);
if ((size_t)read_bytes < tcp->incoming_buffer->length) {
@@ -555,6 +561,9 @@ static bool tcp_flush(grpc_exec_ctx *exec_ctx, grpc_tcp *tcp,
msg.msg_controllen = 0;
msg.msg_flags = 0;
+ GRPC_STATS_INC_TCP_WRITE_SIZE(exec_ctx, sending_length);
+ GRPC_STATS_INC_TCP_WRITE_IOV_SIZE(exec_ctx, iov_size);
+
GPR_TIMER_BEGIN("sendmsg", 1);
do {
/* TODO(klempner): Cork if this is a partial write */
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-25 19:59:37 +0000