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-rw-r--r--tools/testing/selftests/bpf/bench.c23
-rw-r--r--tools/testing/selftests/bpf/benchs/bench_bloom_filter_map.c57
-rwxr-xr-xtools/testing/selftests/bpf/benchs/run_bench_bloom_filter_map.sh17
-rw-r--r--tools/testing/selftests/bpf/benchs/run_common.sh12
4 files changed, 104 insertions, 5 deletions
diff --git a/tools/testing/selftests/bpf/bench.c b/tools/testing/selftests/bpf/bench.c
index a1d5dffe5ef6..cc4722f693e9 100644
--- a/tools/testing/selftests/bpf/bench.c
+++ b/tools/testing/selftests/bpf/bench.c
@@ -92,20 +92,22 @@ void hits_drops_report_progress(int iter, struct bench_res *res, long delta_ns)
printf("Iter %3d (%7.3lfus): ",
iter, (delta_ns - 1000000000) / 1000.0);
- printf("hits %8.3lfM/s (%7.3lfM/prod), drops %8.3lfM/s\n",
- hits_per_sec, hits_per_prod, drops_per_sec);
+ printf("hits %8.3lfM/s (%7.3lfM/prod), drops %8.3lfM/s, total operations %8.3lfM/s\n",
+ hits_per_sec, hits_per_prod, drops_per_sec, hits_per_sec + drops_per_sec);
}
void hits_drops_report_final(struct bench_res res[], int res_cnt)
{
int i;
- double hits_mean = 0.0, drops_mean = 0.0;
- double hits_stddev = 0.0, drops_stddev = 0.0;
+ double hits_mean = 0.0, drops_mean = 0.0, total_ops_mean = 0.0;
+ double hits_stddev = 0.0, drops_stddev = 0.0, total_ops_stddev = 0.0;
+ double total_ops;
for (i = 0; i < res_cnt; i++) {
hits_mean += res[i].hits / 1000000.0 / (0.0 + res_cnt);
drops_mean += res[i].drops / 1000000.0 / (0.0 + res_cnt);
}
+ total_ops_mean = hits_mean + drops_mean;
if (res_cnt > 1) {
for (i = 0; i < res_cnt; i++) {
@@ -115,14 +117,21 @@ void hits_drops_report_final(struct bench_res res[], int res_cnt)
drops_stddev += (drops_mean - res[i].drops / 1000000.0) *
(drops_mean - res[i].drops / 1000000.0) /
(res_cnt - 1.0);
+ total_ops = res[i].hits + res[i].drops;
+ total_ops_stddev += (total_ops_mean - total_ops / 1000000.0) *
+ (total_ops_mean - total_ops / 1000000.0) /
+ (res_cnt - 1.0);
}
hits_stddev = sqrt(hits_stddev);
drops_stddev = sqrt(drops_stddev);
+ total_ops_stddev = sqrt(total_ops_stddev);
}
printf("Summary: hits %8.3lf \u00B1 %5.3lfM/s (%7.3lfM/prod), ",
hits_mean, hits_stddev, hits_mean / env.producer_cnt);
- printf("drops %8.3lf \u00B1 %5.3lfM/s\n",
+ printf("drops %8.3lf \u00B1 %5.3lfM/s, ",
drops_mean, drops_stddev);
+ printf("total operations %8.3lf \u00B1 %5.3lfM/s\n",
+ total_ops_mean, total_ops_stddev);
}
const char *argp_program_version = "benchmark";
@@ -357,6 +366,8 @@ extern const struct bench bench_pb_custom;
extern const struct bench bench_bloom_lookup;
extern const struct bench bench_bloom_update;
extern const struct bench bench_bloom_false_positive;
+extern const struct bench bench_hashmap_without_bloom;
+extern const struct bench bench_hashmap_with_bloom;
static const struct bench *benchs[] = {
&bench_count_global,
@@ -381,6 +392,8 @@ static const struct bench *benchs[] = {
&bench_bloom_lookup,
&bench_bloom_update,
&bench_bloom_false_positive,
+ &bench_hashmap_without_bloom,
+ &bench_hashmap_with_bloom,
};
static void setup_benchmark()
diff --git a/tools/testing/selftests/bpf/benchs/bench_bloom_filter_map.c b/tools/testing/selftests/bpf/benchs/bench_bloom_filter_map.c
index 4bafad418a8a..6eeeed2913e6 100644
--- a/tools/testing/selftests/bpf/benchs/bench_bloom_filter_map.c
+++ b/tools/testing/selftests/bpf/benchs/bench_bloom_filter_map.c
@@ -346,6 +346,41 @@ static void false_positive_setup(void)
}
}
+static void hashmap_with_bloom_setup(void)
+{
+ struct bpf_link *link;
+
+ ctx.use_hashmap = true;
+ ctx.hashmap_use_bloom = true;
+
+ ctx.skel = setup_skeleton();
+
+ populate_maps();
+
+ link = bpf_program__attach(ctx.skel->progs.bloom_hashmap_lookup);
+ if (!link) {
+ fprintf(stderr, "failed to attach program!\n");
+ exit(1);
+ }
+}
+
+static void hashmap_no_bloom_setup(void)
+{
+ struct bpf_link *link;
+
+ ctx.use_hashmap = true;
+
+ ctx.skel = setup_skeleton();
+
+ populate_maps();
+
+ link = bpf_program__attach(ctx.skel->progs.bloom_hashmap_lookup);
+ if (!link) {
+ fprintf(stderr, "failed to attach program!\n");
+ exit(1);
+ }
+}
+
static void measure(struct bench_res *res)
{
unsigned long total_hits = 0, total_drops = 0, total_false_hits = 0;
@@ -418,3 +453,25 @@ const struct bench bench_bloom_false_positive = {
.report_progress = false_hits_report_progress,
.report_final = false_hits_report_final,
};
+
+const struct bench bench_hashmap_without_bloom = {
+ .name = "hashmap-without-bloom",
+ .validate = validate,
+ .setup = hashmap_no_bloom_setup,
+ .producer_thread = producer,
+ .consumer_thread = consumer,
+ .measure = measure,
+ .report_progress = hits_drops_report_progress,
+ .report_final = hits_drops_report_final,
+};
+
+const struct bench bench_hashmap_with_bloom = {
+ .name = "hashmap-with-bloom",
+ .validate = validate,
+ .setup = hashmap_with_bloom_setup,
+ .producer_thread = producer,
+ .consumer_thread = consumer,
+ .measure = measure,
+ .report_progress = hits_drops_report_progress,
+ .report_final = hits_drops_report_final,
+};
diff --git a/tools/testing/selftests/bpf/benchs/run_bench_bloom_filter_map.sh b/tools/testing/selftests/bpf/benchs/run_bench_bloom_filter_map.sh
index d03d0e5c91cd..8ffd385ab2f4 100755
--- a/tools/testing/selftests/bpf/benchs/run_bench_bloom_filter_map.sh
+++ b/tools/testing/selftests/bpf/benchs/run_bench_bloom_filter_map.sh
@@ -26,3 +26,20 @@ subtitle "value_size: $v bytes, # threads: $t, # hashes: $h"
done
done
done
+
+header "Hashmap without bloom filter vs. hashmap with bloom filter (throughput, 8 threads)"
+for v in 2 4 8 16 40; do
+for h in {1..10}; do
+subtitle "value_size: $v, # hashes: $h"
+ for e in 10000 50000 75000 100000 250000 500000 750000 1000000 2500000 5000000; do
+ printf "%'d entries -\n" $e
+ printf "\t"
+ summarize_total "Hashmap without bloom filter: " \
+ "$($RUN_BENCH --nr_hash_funcs $h --nr_entries $e --value_size $v -p 8 hashmap-without-bloom)"
+ printf "\t"
+ summarize_total "Hashmap with bloom filter: " \
+ "$($RUN_BENCH --nr_hash_funcs $h --nr_entries $e --value_size $v -p 8 hashmap-with-bloom)"
+ done
+ printf "\n"
+done
+done
diff --git a/tools/testing/selftests/bpf/benchs/run_common.sh b/tools/testing/selftests/bpf/benchs/run_common.sh
index 670f23b037c4..9a16be78b180 100644
--- a/tools/testing/selftests/bpf/benchs/run_common.sh
+++ b/tools/testing/selftests/bpf/benchs/run_common.sh
@@ -33,6 +33,11 @@ function percentage()
echo "$*" | sed -E "s/.*Percentage\s=\s+([0-9]+\.[0-9]+).*/\1/"
}
+function total()
+{
+ echo "$*" | sed -E "s/.*total operations\s+([0-9]+\.[0-9]+ ± [0-9]+\.[0-9]+M\/s).*/\1/"
+}
+
function summarize()
{
bench="$1"
@@ -46,3 +51,10 @@ function summarize_percentage()
summary=$(echo $2 | tail -n1)
printf "%-20s %s%%\n" "$bench" "$(percentage $summary)"
}
+
+function summarize_total()
+{
+ bench="$1"
+ summary=$(echo $2 | tail -n1)
+ printf "%-20s %s\n" "$bench" "$(total $summary)"
+}