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[69.181.90.243]) by smtp.gmail.com with ESMTPSA id 71sm7246099pfb.20.2020.06.12.13.10.57 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 12 Jun 2020 13:10:57 -0700 (PDT) Received: from gnu-cfl-2.localdomain (localhost [IPv6:::1]) by gnu-cfl-2.localdomain (Postfix) with ESMTP id 5808E1A021E for ; Fri, 12 Jun 2020 13:10:56 -0700 (PDT) To: libc-alpha@sourceware.org Subject: [PATCH 4/4] bench-strcmp.c: Add workloads on page boundary Date: Fri, 12 Jun 2020 13:10:56 -0700 Message-Id: <20200612201056.228614-4-hjl.tools@gmail.com> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200612201056.228614-1-hjl.tools@gmail.com> References: <20200612201056.228614-1-hjl.tools@gmail.com> MIME-Version: 1.0 X-Spam-Status: No, score=-13.5 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=3.4.2 X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) 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-Patchwork-Original-From: "H.J. Lu via Libc-alpha" From: "H.J. Lu" Reply-To: "H.J. Lu" Errors-To: libc-alpha-bounces@sourceware.org Sender: "Libc-alpha" Add strcmp workloads on page boundary. Reviewed-by: Carlos O'Donell --- benchtests/bench-strcmp.c | 48 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 48 insertions(+) diff --git a/benchtests/bench-strcmp.c b/benchtests/bench-strcmp.c index 47d0a35299..3ba1399a4d 100644 --- a/benchtests/bench-strcmp.c +++ b/benchtests/bench-strcmp.c @@ -144,6 +144,52 @@ do_test (json_ctx_t *json_ctx, size_t align1, size_t align2, size_t len, int json_element_object_end (json_ctx); } +static void +do_test_page_boundary_1 (json_ctx_t *json_ctx, CHAR *s1, CHAR *s2, + size_t align1, size_t align2, size_t len, + int exp_result) +{ + json_element_object_begin (json_ctx); + json_attr_uint (json_ctx, "length", (double) len); + json_attr_uint (json_ctx, "align1", (double) align1); + json_attr_uint (json_ctx, "align2", (double) align2); + json_array_begin (json_ctx, "timings"); + FOR_EACH_IMPL (impl, 0) + do_one_test (json_ctx, impl, s1, s2, exp_result); + json_array_end (json_ctx); + json_element_object_end (json_ctx); +} + +static void +do_test_page_boundary (json_ctx_t *json_ctx) +{ + size_t size = 32 * 4; + size_t len; + CHAR *s1 = (CHAR *) (buf1 + (BUF1PAGES - 1) * page_size); + CHAR *s2 = (CHAR *) (buf2 + (BUF1PAGES - 1) * page_size); + int exp_result; + + memset (s1, 'a', page_size); + memset (s2, 'a', page_size); + + s1[(page_size / CHARBYTES) - 1] = (CHAR) 0; + s2[(page_size / CHARBYTES) - 1] = (CHAR) 0; + + for (size_t s = 99; s <= size; s++) + for (size_t s1a = 31; s1a < 32; s1a++) + for (size_t s2a = 30; s2a < 32; s2a++) + { + size_t align1 = (page_size / CHARBYTES - s) - s1a; + size_t align2 = (page_size / CHARBYTES - s) - s2a; + CHAR *s1p = s1 + align1; + CHAR *s2p = s2 + align2; + len = (page_size / CHARBYTES) - 1 - align1; + exp_result = SIMPLE_STRCMP (s1p, s2p); + do_test_page_boundary_1 (json_ctx, s1p, s2p, align1, align2, + len, exp_result); + } +} + int test_main (void) { @@ -197,6 +243,8 @@ test_main (void) do_test (&json_ctx, 2 * CHARBYTES * i, CHARBYTES * i, 8 << i, LARGECHAR, -1); } + do_test_page_boundary (&json_ctx); + json_array_end (&json_ctx); json_attr_object_end (&json_ctx); json_attr_object_end (&json_ctx);