From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-qk1-x72e.google.com (mail-qk1-x72e.google.com [IPv6:2607:f8b0:4864:20::72e]) by sourceware.org (Postfix) with ESMTPS id 8359C3857820 for ; Fri, 22 Apr 2022 01:52:36 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org 8359C3857820 Received: by mail-qk1-x72e.google.com with SMTP id e128so4912230qkd.7 for ; Thu, 21 Apr 2022 18:52:36 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=4fWP89Tizyd7BdLvN05iGONORiynP373ZJkxQVG0h1U=; b=GpcWlhTQgANKPqlRcAIAZtSxEP6QDR1V2huLzjxCgwVYBRjO8az0b0TtHiip1yEpOM kg18apv2cPDXmJ8KpJoLkDXrSIm8z1U4CkR6mYl9blmo55u7N1wN7TuTKYCRWacaiosZ a146jRfg+POg9RJ20toHpgcHB8Z2sNqUo09iZyVLWeJkfxlRpIyy7knlL1Egp1Mig5IZ kygberc1bifKL4MNe9DCZr/zp6aBHmSHgm/dKPL9dZIp9Zvda7IoJOnz97xT5M5gZUrk 0Qb9/1JFGQ0u8MGvd7RW9ue2tJ18qBSReDFXwZ2H/HrIxqbacIeKnX767aR0RCwT6xXK hfYw== X-Gm-Message-State: AOAM5336QVN7ypUIN22gmlHqzu1YqnuuTS2qtHIovOl2dXGxnbMe082r GTchh5Rx8Kp6Q7S2RKSLwSAzCWk4Vm4= X-Google-Smtp-Source: ABdhPJw3jyJOADA7IeeNornTeedJJOWVfMnIG4bjbx+tx+LZLWGCzG0TxD4gkXwgAMVqSJg0OHCPEA== X-Received: by 2002:a37:a552:0:b0:69f:10de:ad8 with SMTP id o79-20020a37a552000000b0069f10de0ad8mr1420349qke.347.1650592355739; Thu, 21 Apr 2022 18:52:35 -0700 (PDT) Received: from localhost.localdomain ([173.245.203.170]) by smtp.googlemail.com with ESMTPSA id n11-20020a05622a11cb00b002f344f11849sm433268qtk.71.2022.04.21.18.52.35 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 21 Apr 2022 18:52:35 -0700 (PDT) From: Noah Goldstein To: libc-alpha@sourceware.org Subject: [PATCH v3 1/4] benchtests: Improve bench-strrchr Date: Thu, 21 Apr 2022 20:52:27 -0500 Message-Id: <20220422015230.3241772-1-goldstein.w.n@gmail.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220421031410.2142238-1-goldstein.w.n@gmail.com> References: <20220421031410.2142238-1-goldstein.w.n@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Spam-Status: No, score=-11.9 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, FREEMAIL_FROM, GIT_PATCH_0, RCVD_IN_DNSWL_NONE, SPF_HELO_NONE, SPF_PASS, TXREP autolearn=ham autolearn_force=no version=3.4.4 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on server2.sourceware.org X-BeenThere: libc-alpha@sourceware.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Libc-alpha mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 22 Apr 2022 01:52:44 -0000 1. Use json-lib for printing results. 2. Expose all parameters (before pos, seek_char, and max_char where not printed). 3. Add benchmarks that test multiple occurence of seek_char in the string. --- benchtests/bench-strrchr.c | 124 ++++++++++++++++++++++++------------- 1 file changed, 80 insertions(+), 44 deletions(-) diff --git a/benchtests/bench-strrchr.c b/benchtests/bench-strrchr.c index abdae60c51..ce4307a098 100644 --- a/benchtests/bench-strrchr.c +++ b/benchtests/bench-strrchr.c @@ -23,6 +23,7 @@ # define TEST_NAME "strrchr" #endif #include "bench-string.h" +#include "json-lib.h" #define BIG_CHAR MAX_CHAR @@ -53,7 +54,8 @@ SIMPLE_STRRCHR (const CHAR *s, int c) } static void -do_one_test (impl_t *impl, const CHAR *s, int c, CHAR *exp_res) +do_one_test (json_ctx_t *json_ctx, impl_t *impl, const CHAR *s, int c, + CHAR *exp_res) { CHAR *res = CALL (impl, s, c); size_t i, iters = INNER_LOOP_ITERS8; @@ -61,8 +63,8 @@ do_one_test (impl_t *impl, const CHAR *s, int c, CHAR *exp_res) if (res != exp_res) { - error (0, 0, "Wrong result in function %s %p %p", impl->name, - res, exp_res); + error (0, 0, "Wrong result in function %s %p %p", impl->name, res, + exp_res); ret = 1; return; } @@ -73,23 +75,25 @@ do_one_test (impl_t *impl, const CHAR *s, int c, CHAR *exp_res) CALL (impl, s, c); } TIMING_NOW (stop); - TIMING_DIFF (cur, start, stop); - TIMING_PRINT_MEAN ((double) cur, (double) iters); + json_element_double (json_ctx, (double) cur / (double) iters); } static void -do_test (size_t align, size_t pos, size_t len, int seek_char, int max_char) +do_test (json_ctx_t *json_ctx, size_t align, size_t pos, size_t len, + int seek_char, int max_char, size_t freq) /* For wcsrchr: align here means align not in bytes, but in wchar_ts, in bytes it will equal to align * (sizeof (wchar_t)) len for wcschr here isn't in bytes but it's number of wchar_t symbols. */ { size_t i; + size_t pos_chunk_sz = freq ? (pos / freq) : pos; + size_t last_pos = len; CHAR *result; CHAR *buf = (CHAR *) buf1; - align &= 7; + align &= (getpagesize () - 1); if ((align + len) * sizeof (CHAR) >= page_size) return; @@ -103,6 +107,16 @@ do_test (size_t align, size_t pos, size_t len, int seek_char, int max_char) if ((i > pos || pos >= len) && buf[align + i] == seek_char) buf[align + i] = seek_char + 10 + (random () & 15); } + + if (pos_chunk_sz == 0 && pos) + pos_chunk_sz = 1; + + for (i = pos_chunk_sz; i < pos && i < len; i += pos_chunk_sz) + { + buf[align + i] = seek_char; + last_pos = i; + } + buf[align + len] = 0; if (pos < len) @@ -110,66 +124,88 @@ do_test (size_t align, size_t pos, size_t len, int seek_char, int max_char) buf[align + pos] = seek_char; result = (CHAR *) (buf + align + pos); } + else if (last_pos < len) + result = (CHAR *) (buf + align + last_pos); else if (seek_char == 0) result = (CHAR *) (buf + align + len); else result = NULL; - printf ("Length %4zd, alignment in bytes %2zd:", len, align * sizeof (CHAR)); + json_element_object_begin (json_ctx); + json_attr_uint (json_ctx, "len", len); + json_attr_uint (json_ctx, "pos", pos); + json_attr_uint (json_ctx, "align", align); + json_attr_uint (json_ctx, "freq", freq); + json_attr_uint (json_ctx, "seek", seek_char); + json_attr_uint (json_ctx, "max_char", max_char); + json_array_begin (json_ctx, "timings"); FOR_EACH_IMPL (impl, 0) - do_one_test (impl, (CHAR *) (buf + align), seek_char, result); + do_one_test (json_ctx, impl, (CHAR *) (buf + align), seek_char, result); - putchar ('\n'); + json_array_end (json_ctx); + json_element_object_end (json_ctx); } int test_main (void) { - size_t i; + json_ctx_t json_ctx; + size_t i, j; + int seek; test_init (); + json_init (&json_ctx, 0, stdout); - printf ("%20s", ""); - FOR_EACH_IMPL (impl, 0) - printf ("\t%s", impl->name); - putchar ('\n'); - - for (i = 1; i < 8; ++i) - { - do_test (0, 16 << i, 2048, 23, SMALL_CHAR); - do_test (i, 16 << i, 2048, 23, SMALL_CHAR); - } + json_document_begin (&json_ctx); + json_attr_string (&json_ctx, "timing_type", TIMING_TYPE); - for (i = 1; i < 8; ++i) - { - do_test (i, 64, 256, 23, SMALL_CHAR); - do_test (i, 64, 256, 23, BIG_CHAR); - } + json_attr_object_begin (&json_ctx, "functions"); + json_attr_object_begin (&json_ctx, TEST_NAME); + json_attr_string (&json_ctx, "bench-variant", ""); - for (i = 0; i < 32; ++i) - { - do_test (0, i, i + 1, 23, SMALL_CHAR); - do_test (0, i, i + 1, 23, BIG_CHAR); - } + json_array_begin (&json_ctx, "ifuncs"); + FOR_EACH_IMPL (impl, 0) + json_element_string (&json_ctx, impl->name); + json_array_end (&json_ctx); - for (i = 1; i < 8; ++i) - { - do_test (0, 16 << i, 2048, 0, SMALL_CHAR); - do_test (i, 16 << i, 2048, 0, SMALL_CHAR); - } + json_array_begin (&json_ctx, "results"); - for (i = 1; i < 8; ++i) + for (seek = 0; seek <= 23; seek += 23) { - do_test (i, 64, 256, 0, SMALL_CHAR); - do_test (i, 64, 256, 0, BIG_CHAR); + for (j = 1; j < 32; j += j) + { + for (i = 1; i < 9; ++i) + { + do_test (&json_ctx, 0, 16 << i, 2048, seek, SMALL_CHAR, j); + do_test (&json_ctx, i, 16 << i, 2048, seek, SMALL_CHAR, j); + } + + for (i = 1; i < 8; ++i) + { + do_test (&json_ctx, i, 64, 256, seek, SMALL_CHAR, j); + do_test (&json_ctx, i, 64, 256, seek, BIG_CHAR, j); + + do_test (&json_ctx, i * 15, 64, 256, seek, SMALL_CHAR, j); + do_test (&json_ctx, i * 15, 64, 256, seek, BIG_CHAR, j); + } + + for (i = 0; i < 32; ++i) + { + do_test (&json_ctx, 0, i, i + 1, seek, SMALL_CHAR, j); + do_test (&json_ctx, 0, i, i + 1, seek, BIG_CHAR, j); + } + if (seek == 0) + { + break; + } + } } - for (i = 0; i < 32; ++i) - { - do_test (0, i, i + 1, 0, SMALL_CHAR); - do_test (0, i, i + 1, 0, BIG_CHAR); - } + json_array_end (&json_ctx); + json_attr_object_end (&json_ctx); + json_attr_object_end (&json_ctx); + json_document_end (&json_ctx); return ret; } -- 2.25.1