diff options
Diffstat (limited to '')
-rw-r--r-- | tools/testing/selftests/bpf/benchs/bench_bloom_filter_map.c | 17 | ||||
-rw-r--r-- | tools/testing/selftests/bpf/benchs/bench_bpf_loop.c | 105 | ||||
-rw-r--r-- | tools/testing/selftests/bpf/benchs/bench_count.c | 2 | ||||
-rw-r--r-- | tools/testing/selftests/bpf/benchs/bench_rename.c | 16 | ||||
-rw-r--r-- | tools/testing/selftests/bpf/benchs/bench_ringbufs.c | 22 | ||||
-rw-r--r-- | tools/testing/selftests/bpf/benchs/bench_strncmp.c | 161 | ||||
-rw-r--r-- | tools/testing/selftests/bpf/benchs/bench_trigger.c | 162 | ||||
-rwxr-xr-x | tools/testing/selftests/bpf/benchs/run_bench_bpf_loop.sh | 15 | ||||
-rwxr-xr-x | tools/testing/selftests/bpf/benchs/run_bench_strncmp.sh | 12 | ||||
-rw-r--r-- | tools/testing/selftests/bpf/benchs/run_common.sh | 15 |
10 files changed, 491 insertions, 36 deletions
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 6eeeed2913e6..5bcb8a8cdeb2 100644 --- a/tools/testing/selftests/bpf/benchs/bench_bloom_filter_map.c +++ b/tools/testing/selftests/bpf/benchs/bench_bloom_filter_map.c @@ -63,29 +63,34 @@ static const struct argp_option opts[] = { static error_t parse_arg(int key, char *arg, struct argp_state *state) { + long ret; + switch (key) { case ARG_NR_ENTRIES: - args.nr_entries = strtol(arg, NULL, 10); - if (args.nr_entries == 0) { + ret = strtol(arg, NULL, 10); + if (ret < 1 || ret > UINT_MAX) { fprintf(stderr, "Invalid nr_entries count."); argp_usage(state); } + args.nr_entries = ret; break; case ARG_NR_HASH_FUNCS: - args.nr_hash_funcs = strtol(arg, NULL, 10); - if (args.nr_hash_funcs == 0 || args.nr_hash_funcs > 15) { + ret = strtol(arg, NULL, 10); + if (ret < 1 || ret > 15) { fprintf(stderr, "The bloom filter must use 1 to 15 hash functions."); argp_usage(state); } + args.nr_hash_funcs = ret; break; case ARG_VALUE_SIZE: - args.value_size = strtol(arg, NULL, 10); - if (args.value_size < 2 || args.value_size > 256) { + ret = strtol(arg, NULL, 10); + if (ret < 2 || ret > 256) { fprintf(stderr, "Invalid value size. Must be between 2 and 256 bytes"); argp_usage(state); } + args.value_size = ret; break; default: return ARGP_ERR_UNKNOWN; diff --git a/tools/testing/selftests/bpf/benchs/bench_bpf_loop.c b/tools/testing/selftests/bpf/benchs/bench_bpf_loop.c new file mode 100644 index 000000000000..d0a6572bfab6 --- /dev/null +++ b/tools/testing/selftests/bpf/benchs/bench_bpf_loop.c @@ -0,0 +1,105 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright (c) 2021 Facebook */ + +#include <argp.h> +#include "bench.h" +#include "bpf_loop_bench.skel.h" + +/* BPF triggering benchmarks */ +static struct ctx { + struct bpf_loop_bench *skel; +} ctx; + +static struct { + __u32 nr_loops; +} args = { + .nr_loops = 10, +}; + +enum { + ARG_NR_LOOPS = 4000, +}; + +static const struct argp_option opts[] = { + { "nr_loops", ARG_NR_LOOPS, "nr_loops", 0, + "Set number of loops for the bpf_loop helper"}, + {}, +}; + +static error_t parse_arg(int key, char *arg, struct argp_state *state) +{ + switch (key) { + case ARG_NR_LOOPS: + args.nr_loops = strtol(arg, NULL, 10); + break; + default: + return ARGP_ERR_UNKNOWN; + } + + return 0; +} + +/* exported into benchmark runner */ +const struct argp bench_bpf_loop_argp = { + .options = opts, + .parser = parse_arg, +}; + +static void validate(void) +{ + if (env.consumer_cnt != 1) { + fprintf(stderr, "benchmark doesn't support multi-consumer!\n"); + exit(1); + } +} + +static void *producer(void *input) +{ + while (true) + /* trigger the bpf program */ + syscall(__NR_getpgid); + + return NULL; +} + +static void *consumer(void *input) +{ + return NULL; +} + +static void measure(struct bench_res *res) +{ + res->hits = atomic_swap(&ctx.skel->bss->hits, 0); +} + +static void setup(void) +{ + struct bpf_link *link; + + setup_libbpf(); + + ctx.skel = bpf_loop_bench__open_and_load(); + if (!ctx.skel) { + fprintf(stderr, "failed to open skeleton\n"); + exit(1); + } + + link = bpf_program__attach(ctx.skel->progs.benchmark); + if (!link) { + fprintf(stderr, "failed to attach program!\n"); + exit(1); + } + + ctx.skel->bss->nr_loops = args.nr_loops; +} + +const struct bench bench_bpf_loop = { + .name = "bpf-loop", + .validate = validate, + .setup = setup, + .producer_thread = producer, + .consumer_thread = consumer, + .measure = measure, + .report_progress = ops_report_progress, + .report_final = ops_report_final, +}; diff --git a/tools/testing/selftests/bpf/benchs/bench_count.c b/tools/testing/selftests/bpf/benchs/bench_count.c index befba7a82643..078972ce208e 100644 --- a/tools/testing/selftests/bpf/benchs/bench_count.c +++ b/tools/testing/selftests/bpf/benchs/bench_count.c @@ -36,7 +36,7 @@ static struct count_local_ctx { struct counter *hits; } count_local_ctx; -static void count_local_setup() +static void count_local_setup(void) { struct count_local_ctx *ctx = &count_local_ctx; diff --git a/tools/testing/selftests/bpf/benchs/bench_rename.c b/tools/testing/selftests/bpf/benchs/bench_rename.c index c7ec114eca56..3c203b6d6a6e 100644 --- a/tools/testing/selftests/bpf/benchs/bench_rename.c +++ b/tools/testing/selftests/bpf/benchs/bench_rename.c @@ -11,7 +11,7 @@ static struct ctx { int fd; } ctx; -static void validate() +static void validate(void) { if (env.producer_cnt != 1) { fprintf(stderr, "benchmark doesn't support multi-producer!\n"); @@ -43,7 +43,7 @@ static void measure(struct bench_res *res) res->hits = atomic_swap(&ctx.hits.value, 0); } -static void setup_ctx() +static void setup_ctx(void) { setup_libbpf(); @@ -71,36 +71,36 @@ static void attach_bpf(struct bpf_program *prog) } } -static void setup_base() +static void setup_base(void) { setup_ctx(); } -static void setup_kprobe() +static void setup_kprobe(void) { setup_ctx(); attach_bpf(ctx.skel->progs.prog1); } -static void setup_kretprobe() +static void setup_kretprobe(void) { setup_ctx(); attach_bpf(ctx.skel->progs.prog2); } -static void setup_rawtp() +static void setup_rawtp(void) { setup_ctx(); attach_bpf(ctx.skel->progs.prog3); } -static void setup_fentry() +static void setup_fentry(void) { setup_ctx(); attach_bpf(ctx.skel->progs.prog4); } -static void setup_fexit() +static void setup_fexit(void) { setup_ctx(); attach_bpf(ctx.skel->progs.prog5); diff --git a/tools/testing/selftests/bpf/benchs/bench_ringbufs.c b/tools/testing/selftests/bpf/benchs/bench_ringbufs.c index d167bffac679..da8593b3494a 100644 --- a/tools/testing/selftests/bpf/benchs/bench_ringbufs.c +++ b/tools/testing/selftests/bpf/benchs/bench_ringbufs.c @@ -88,12 +88,12 @@ const struct argp bench_ringbufs_argp = { static struct counter buf_hits; -static inline void bufs_trigger_batch() +static inline void bufs_trigger_batch(void) { (void)syscall(__NR_getpgid); } -static void bufs_validate() +static void bufs_validate(void) { if (env.consumer_cnt != 1) { fprintf(stderr, "rb-libbpf benchmark doesn't support multi-consumer!\n"); @@ -132,7 +132,7 @@ static void ringbuf_libbpf_measure(struct bench_res *res) res->drops = atomic_swap(&ctx->skel->bss->dropped, 0); } -static struct ringbuf_bench *ringbuf_setup_skeleton() +static struct ringbuf_bench *ringbuf_setup_skeleton(void) { struct ringbuf_bench *skel; @@ -167,7 +167,7 @@ static int buf_process_sample(void *ctx, void *data, size_t len) return 0; } -static void ringbuf_libbpf_setup() +static void ringbuf_libbpf_setup(void) { struct ringbuf_libbpf_ctx *ctx = &ringbuf_libbpf_ctx; struct bpf_link *link; @@ -223,7 +223,7 @@ static void ringbuf_custom_measure(struct bench_res *res) res->drops = atomic_swap(&ctx->skel->bss->dropped, 0); } -static void ringbuf_custom_setup() +static void ringbuf_custom_setup(void) { struct ringbuf_custom_ctx *ctx = &ringbuf_custom_ctx; const size_t page_size = getpagesize(); @@ -352,7 +352,7 @@ static void perfbuf_measure(struct bench_res *res) res->drops = atomic_swap(&ctx->skel->bss->dropped, 0); } -static struct perfbuf_bench *perfbuf_setup_skeleton() +static struct perfbuf_bench *perfbuf_setup_skeleton(void) { struct perfbuf_bench *skel; @@ -390,15 +390,10 @@ perfbuf_process_sample_raw(void *input_ctx, int cpu, return LIBBPF_PERF_EVENT_CONT; } -static void perfbuf_libbpf_setup() +static void perfbuf_libbpf_setup(void) { struct perfbuf_libbpf_ctx *ctx = &perfbuf_libbpf_ctx; struct perf_event_attr attr; - struct perf_buffer_raw_opts pb_opts = { - .event_cb = perfbuf_process_sample_raw, - .ctx = (void *)(long)0, - .attr = &attr, - }; struct bpf_link *link; ctx->skel = perfbuf_setup_skeleton(); @@ -423,7 +418,8 @@ static void perfbuf_libbpf_setup() } ctx->perfbuf = perf_buffer__new_raw(bpf_map__fd(ctx->skel->maps.perfbuf), - args.perfbuf_sz, &pb_opts); + args.perfbuf_sz, &attr, + perfbuf_process_sample_raw, NULL, NULL); if (!ctx->perfbuf) { fprintf(stderr, "failed to create perfbuf\n"); exit(1); diff --git a/tools/testing/selftests/bpf/benchs/bench_strncmp.c b/tools/testing/selftests/bpf/benchs/bench_strncmp.c new file mode 100644 index 000000000000..494b591c0289 --- /dev/null +++ b/tools/testing/selftests/bpf/benchs/bench_strncmp.c @@ -0,0 +1,161 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright (C) 2021. Huawei Technologies Co., Ltd */ +#include <argp.h> +#include "bench.h" +#include "strncmp_bench.skel.h" + +static struct strncmp_ctx { + struct strncmp_bench *skel; +} ctx; + +static struct strncmp_args { + u32 cmp_str_len; +} args = { + .cmp_str_len = 32, +}; + +enum { + ARG_CMP_STR_LEN = 5000, +}; + +static const struct argp_option opts[] = { + { "cmp-str-len", ARG_CMP_STR_LEN, "CMP_STR_LEN", 0, + "Set the length of compared string" }, + {}, +}; + +static error_t strncmp_parse_arg(int key, char *arg, struct argp_state *state) +{ + switch (key) { + case ARG_CMP_STR_LEN: + args.cmp_str_len = strtoul(arg, NULL, 10); + if (!args.cmp_str_len || + args.cmp_str_len >= sizeof(ctx.skel->bss->str)) { + fprintf(stderr, "Invalid cmp str len (limit %zu)\n", + sizeof(ctx.skel->bss->str)); + argp_usage(state); + } + break; + default: + return ARGP_ERR_UNKNOWN; + } + + return 0; +} + +const struct argp bench_strncmp_argp = { + .options = opts, + .parser = strncmp_parse_arg, +}; + +static void strncmp_validate(void) +{ + if (env.consumer_cnt != 1) { + fprintf(stderr, "strncmp benchmark doesn't support multi-consumer!\n"); + exit(1); + } +} + +static void strncmp_setup(void) +{ + int err; + char *target; + size_t i, sz; + + sz = sizeof(ctx.skel->rodata->target); + if (!sz || sz < sizeof(ctx.skel->bss->str)) { + fprintf(stderr, "invalid string size (target %zu, src %zu)\n", + sz, sizeof(ctx.skel->bss->str)); + exit(1); + } + + setup_libbpf(); + + ctx.skel = strncmp_bench__open(); + if (!ctx.skel) { + fprintf(stderr, "failed to open skeleton\n"); + exit(1); + } + + srandom(time(NULL)); + target = ctx.skel->rodata->target; + for (i = 0; i < sz - 1; i++) + target[i] = '1' + random() % 9; + target[sz - 1] = '\0'; + + ctx.skel->rodata->cmp_str_len = args.cmp_str_len; + + memcpy(ctx.skel->bss->str, target, args.cmp_str_len); + ctx.skel->bss->str[args.cmp_str_len] = '\0'; + /* Make bss->str < rodata->target */ + ctx.skel->bss->str[args.cmp_str_len - 1] -= 1; + + err = strncmp_bench__load(ctx.skel); + if (err) { + fprintf(stderr, "failed to load skeleton\n"); + strncmp_bench__destroy(ctx.skel); + exit(1); + } +} + +static void strncmp_attach_prog(struct bpf_program *prog) +{ + struct bpf_link *link; + + link = bpf_program__attach(prog); + if (!link) { + fprintf(stderr, "failed to attach program!\n"); + exit(1); + } +} + +static void strncmp_no_helper_setup(void) +{ + strncmp_setup(); + strncmp_attach_prog(ctx.skel->progs.strncmp_no_helper); +} + +static void strncmp_helper_setup(void) +{ + strncmp_setup(); + strncmp_attach_prog(ctx.skel->progs.strncmp_helper); +} + +static void *strncmp_producer(void *ctx) +{ + while (true) + (void)syscall(__NR_getpgid); + return NULL; +} + +static void *strncmp_consumer(void *ctx) +{ + return NULL; +} + +static void strncmp_measure(struct bench_res *res) +{ + res->hits = atomic_swap(&ctx.skel->bss->hits, 0); +} + +const struct bench bench_strncmp_no_helper = { + .name = "strncmp-no-helper", + .validate = strncmp_validate, + .setup = strncmp_no_helper_setup, + .producer_thread = strncmp_producer, + .consumer_thread = strncmp_consumer, + .measure = strncmp_measure, + .report_progress = hits_drops_report_progress, + .report_final = hits_drops_report_final, +}; + +const struct bench bench_strncmp_helper = { + .name = "strncmp-helper", + .validate = strncmp_validate, + .setup = strncmp_helper_setup, + .producer_thread = strncmp_producer, + .consumer_thread = strncmp_consumer, + .measure = strncmp_measure, + .report_progress = hits_drops_report_progress, + .report_final = hits_drops_report_final, +}; diff --git a/tools/testing/selftests/bpf/benchs/bench_trigger.c b/tools/testing/selftests/bpf/benchs/bench_trigger.c index f41a491a8cc0..7f957c55a3ca 100644 --- a/tools/testing/selftests/bpf/benchs/bench_trigger.c +++ b/tools/testing/selftests/bpf/benchs/bench_trigger.c @@ -2,6 +2,7 @@ /* Copyright (c) 2020 Facebook */ #include "bench.h" #include "trigger_bench.skel.h" +#include "trace_helpers.h" /* BPF triggering benchmarks */ static struct trigger_ctx { @@ -10,7 +11,7 @@ static struct trigger_ctx { static struct counter base_hits; -static void trigger_validate() +static void trigger_validate(void) { if (env.consumer_cnt != 1) { fprintf(stderr, "benchmark doesn't support multi-consumer!\n"); @@ -44,7 +45,7 @@ static void trigger_measure(struct bench_res *res) res->hits = atomic_swap(&ctx.skel->bss->hits, 0); } -static void setup_ctx() +static void setup_ctx(void) { setup_libbpf(); @@ -66,37 +67,37 @@ static void attach_bpf(struct bpf_program *prog) } } -static void trigger_tp_setup() +static void trigger_tp_setup(void) { setup_ctx(); attach_bpf(ctx.skel->progs.bench_trigger_tp); } -static void trigger_rawtp_setup() +static void trigger_rawtp_setup(void) { setup_ctx(); attach_bpf(ctx.skel->progs.bench_trigger_raw_tp); } -static void trigger_kprobe_setup() +static void trigger_kprobe_setup(void) { setup_ctx(); attach_bpf(ctx.skel->progs.bench_trigger_kprobe); } -static void trigger_fentry_setup() +static void trigger_fentry_setup(void) { setup_ctx(); attach_bpf(ctx.skel->progs.bench_trigger_fentry); } -static void trigger_fentry_sleep_setup() +static void trigger_fentry_sleep_setup(void) { setup_ctx(); attach_bpf(ctx.skel->progs.bench_trigger_fentry_sleep); } -static void trigger_fmodret_setup() +static void trigger_fmodret_setup(void) { setup_ctx(); attach_bpf(ctx.skel->progs.bench_trigger_fmodret); @@ -107,6 +108,101 @@ static void *trigger_consumer(void *input) return NULL; } +/* make sure call is not inlined and not avoided by compiler, so __weak and + * inline asm volatile in the body of the function + * + * There is a performance difference between uprobing at nop location vs other + * instructions. So use two different targets, one of which starts with nop + * and another doesn't. + * + * GCC doesn't generate stack setup preample for these functions due to them + * having no input arguments and doing nothing in the body. + */ +__weak void uprobe_target_with_nop(void) +{ + asm volatile ("nop"); +} + +__weak void uprobe_target_without_nop(void) +{ + asm volatile (""); +} + +static void *uprobe_base_producer(void *input) +{ + while (true) { + uprobe_target_with_nop(); + atomic_inc(&base_hits.value); + } + return NULL; +} + +static void *uprobe_producer_with_nop(void *input) +{ + while (true) + uprobe_target_with_nop(); + return NULL; +} + +static void *uprobe_producer_without_nop(void *input) +{ + while (true) + uprobe_target_without_nop(); + return NULL; +} + +static void usetup(bool use_retprobe, bool use_nop) +{ + size_t uprobe_offset; + ssize_t base_addr; + struct bpf_link *link; + + setup_libbpf(); + + ctx.skel = trigger_bench__open_and_load(); + if (!ctx.skel) { + fprintf(stderr, "failed to open skeleton\n"); + exit(1); + } + + base_addr = get_base_addr(); + if (use_nop) + uprobe_offset = get_uprobe_offset(&uprobe_target_with_nop, base_addr); + else + uprobe_offset = get_uprobe_offset(&uprobe_target_without_nop, base_addr); + + link = bpf_program__attach_uprobe(ctx.skel->progs.bench_trigger_uprobe, + use_retprobe, + -1 /* all PIDs */, + "/proc/self/exe", + uprobe_offset); + if (!link) { + fprintf(stderr, "failed to attach uprobe!\n"); + exit(1); + } + ctx.skel->links.bench_trigger_uprobe = link; +} + +static void uprobe_setup_with_nop(void) +{ + usetup(false, true); +} + +static void uretprobe_setup_with_nop(void) +{ + usetup(true, true); +} + +static void uprobe_setup_without_nop(void) +{ + usetup(false, false); +} + +static void uretprobe_setup_without_nop(void) +{ + usetup(true, false); +} + const struct bench bench_trig_base = { .name = "trig-base", .validate = trigger_validate, @@ -182,3 +278,53 @@ const struct bench bench_trig_fmodret = { .report_progress = hits_drops_report_progress, .report_final = hits_drops_report_final, }; + +const struct bench bench_trig_uprobe_base = { + .name = "trig-uprobe-base", + .setup = NULL, /* no uprobe/uretprobe is attached */ + .producer_thread = uprobe_base_producer, + .consumer_thread = trigger_consumer, + .measure = trigger_base_measure, + .report_progress = hits_drops_report_progress, + .report_final = hits_drops_report_final, +}; + +const struct bench bench_trig_uprobe_with_nop = { + .name = "trig-uprobe-with-nop", + .setup = uprobe_setup_with_nop, + .producer_thread = uprobe_producer_with_nop, + .consumer_thread = trigger_consumer, + .measure = trigger_measure, + .report_progress = hits_drops_report_progress, + .report_final = hits_drops_report_final, +}; + +const struct bench bench_trig_uretprobe_with_nop = { + .name = "trig-uretprobe-with-nop", + .setup = uretprobe_setup_with_nop, + .producer_thread = uprobe_producer_with_nop, + .consumer_thread = trigger_consumer, + .measure = trigger_measure, + .report_progress = hits_drops_report_progress, + .report_final = hits_drops_report_final, +}; + +const struct bench bench_trig_uprobe_without_nop = { + .name = "trig-uprobe-without-nop", + .setup = uprobe_setup_without_nop, + .producer_thread = uprobe_producer_without_nop, + .consumer_thread = trigger_consumer, + .measure = trigger_measure, + .report_progress = hits_drops_report_progress, + .report_final = hits_drops_report_final, +}; + +const struct bench bench_trig_uretprobe_without_nop = { + .name = "trig-uretprobe-without-nop", + .setup = uretprobe_setup_without_nop, + .producer_thread = uprobe_producer_without_nop, + .consumer_thread = trigger_consumer, + .measure = trigger_measure, + .report_progress = hits_drops_report_progress, + .report_final = hits_drops_report_final, +}; diff --git a/tools/testing/selftests/bpf/benchs/run_bench_bpf_loop.sh b/tools/testing/selftests/bpf/benchs/run_bench_bpf_loop.sh new file mode 100755 index 000000000000..d4f5f73b356b --- /dev/null +++ b/tools/testing/selftests/bpf/benchs/run_bench_bpf_loop.sh @@ -0,0 +1,15 @@ +#!/bin/bash +# SPDX-License-Identifier: GPL-2.0 + +source ./benchs/run_common.sh + +set -eufo pipefail + +for t in 1 4 8 12 16; do +for i in 10 100 500 1000 5000 10000 50000 100000 500000 1000000; do +subtitle "nr_loops: $i, nr_threads: $t" + summarize_ops "bpf_loop: " \ + "$($RUN_BENCH -p $t --nr_loops $i bpf-loop)" + printf "\n" +done +done diff --git a/tools/testing/selftests/bpf/benchs/run_bench_strncmp.sh b/tools/testing/selftests/bpf/benchs/run_bench_strncmp.sh new file mode 100755 index 000000000000..142697284b45 --- /dev/null +++ b/tools/testing/selftests/bpf/benchs/run_bench_strncmp.sh @@ -0,0 +1,12 @@ +#!/bin/bash +# SPDX-License-Identifier: GPL-2.0 + +source ./benchs/run_common.sh + +set -eufo pipefail + +for s in 1 8 64 512 2048 4095; do + for b in no-helper helper; do + summarize ${b}-${s} "$($RUN_BENCH --cmp-str-len=$s strncmp-${b})" + done +done diff --git a/tools/testing/selftests/bpf/benchs/run_common.sh b/tools/testing/selftests/bpf/benchs/run_common.sh index 9a16be78b180..6c5e6023a69f 100644 --- a/tools/testing/selftests/bpf/benchs/run_common.sh +++ b/tools/testing/selftests/bpf/benchs/run_common.sh @@ -33,6 +33,14 @@ function percentage() echo "$*" | sed -E "s/.*Percentage\s=\s+([0-9]+\.[0-9]+).*/\1/" } +function ops() +{ + echo -n "throughput: " + echo -n "$*" | sed -E "s/.*throughput\s+([0-9]+\.[0-9]+ ± [0-9]+\.[0-9]+\sM\sops\/s).*/\1/" + echo -n -e ", latency: " + echo "$*" | sed -E "s/.*latency\s+([0-9]+\.[0-9]+\sns\/op).*/\1/" +} + function total() { echo "$*" | sed -E "s/.*total operations\s+([0-9]+\.[0-9]+ ± [0-9]+\.[0-9]+M\/s).*/\1/" @@ -52,6 +60,13 @@ function summarize_percentage() printf "%-20s %s%%\n" "$bench" "$(percentage $summary)" } +function summarize_ops() +{ + bench="$1" + summary=$(echo $2 | tail -n1) + printf "%-20s %s\n" "$bench" "$(ops $summary)" +} + function summarize_total() { bench="$1" |