From patchwork Mon Dec 11 12:18:10 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Ilpo_J=C3=A4rvinen?= X-Patchwork-Id: 752830 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="YuTWMfZC" Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.12]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DEAA019D; Mon, 11 Dec 2023 04:20:38 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1702297239; x=1733833239; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=drT+E/o/El2vDgHzkkOhJC/bVSBgtgETMlQmtMNfZUY=; b=YuTWMfZCQsPvnlQMpEUb2teffQGxE38+JPAwBppW9RgrU00imA8HCL4i BGuDumtIptVpVLA7hQDkLfxUXScBos76wWHcu36RMNmPCqK7D4Fy14B6U ZniPY3QiVVzi2mHakReE9XgZ0VSuiM9N+CbYxe3yIVn1NHMsnsRPHb8XU KAPpRxeiA+DFwoY3Itk2AX1cZtLZ5cxk+OluV2rYGkp9PiTa8nxQRZRmQ 5S7o4U5MZ33BzCP+EPSZUI3AePnEzRo6TmsNawWptzBz/FjPcaYVyzqZk xK71O/4errO7PHRmYuk6yGauT7LH6oK63dCrZjG4TIoFXMbirSpauXuL7 Q==; X-IronPort-AV: E=McAfee;i="6600,9927,10920"; a="1758015" X-IronPort-AV: E=Sophos;i="6.04,267,1695711600"; d="scan'208";a="1758015" Received: from fmsmga005.fm.intel.com ([10.253.24.32]) by orvoesa104.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 Dec 2023 04:20:39 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10920"; a="1104461363" X-IronPort-AV: E=Sophos;i="6.04,267,1695711600"; d="scan'208";a="1104461363" Received: from ijarvine-desk1.ger.corp.intel.com (HELO localhost) ([10.246.50.188]) by fmsmga005-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 Dec 2023 04:20:34 -0800 From: =?utf-8?q?Ilpo_J=C3=A4rvinen?= To: linux-kselftest@vger.kernel.org, Reinette Chatre , Shuah Khan , Shaopeng Tan , =?utf-8?q?Maciej_Wiecz=C3=B3r-R?= =?utf-8?q?etman?= , Fenghua Yu Cc: linux-kernel@vger.kernel.org, =?utf-8?q?Ilpo_J=C3=A4rvinen?= Subject: [PATCH v3 13/29] selftests/resctrl: Remove unnecessary __u64 -> unsigned long conversion Date: Mon, 11 Dec 2023 14:18:10 +0200 Message-Id: <20231211121826.14392-14-ilpo.jarvinen@linux.intel.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20231211121826.14392-1-ilpo.jarvinen@linux.intel.com> References: <20231211121826.14392-1-ilpo.jarvinen@linux.intel.com> Precedence: bulk X-Mailing-List: linux-kselftest@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Perf counters are __u64 but the code converts them to unsigned long before printing them out. Remove unnecessary type conversion and retain the perf originating value as __u64. Signed-off-by: Ilpo Järvinen Reviewed-by: Reinette Chatre --- v3: - Altered changelog and removed "the whole time" wording because llc occu results are still unsigned long --- tools/testing/selftests/resctrl/cache.c | 21 ++++++++------------- tools/testing/selftests/resctrl/cat_test.c | 8 ++++---- tools/testing/selftests/resctrl/resctrl.h | 3 +-- 3 files changed, 13 insertions(+), 19 deletions(-) diff --git a/tools/testing/selftests/resctrl/cache.c b/tools/testing/selftests/resctrl/cache.c index 32e262fa2a6c..11d1a6ce14c2 100644 --- a/tools/testing/selftests/resctrl/cache.c +++ b/tools/testing/selftests/resctrl/cache.c @@ -83,9 +83,8 @@ static int reset_enable_llc_perf(pid_t pid, int cpu_no) * * Return: =0 on success. <0 on failure. */ -static int get_llc_perf(unsigned long *llc_perf_miss) +static int get_llc_perf(__u64 *llc_perf_miss) { - __u64 total_misses; int ret; /* Stop counters after one span to get miss rate */ @@ -98,8 +97,7 @@ static int get_llc_perf(unsigned long *llc_perf_miss) return -1; } - total_misses = rf_cqm.values[0].value; - *llc_perf_miss = total_misses; + *llc_perf_miss = rf_cqm.values[0].value; return 0; } @@ -147,14 +145,12 @@ static int get_llc_occu_resctrl(unsigned long *llc_occupancy) * * Return: 0 on success, < 0 on error. */ -static int print_results_cache(const char *filename, int bm_pid, - unsigned long llc_value) +static int print_results_cache(const char *filename, int bm_pid, __u64 llc_value) { FILE *fp; if (strcmp(filename, "stdio") == 0 || strcmp(filename, "stderr") == 0) { - printf("Pid: %d \t LLC_value: %lu\n", bm_pid, - llc_value); + printf("Pid: %d \t LLC_value: %llu\n", bm_pid, llc_value); } else { fp = fopen(filename, "a"); if (!fp) { @@ -162,7 +158,7 @@ static int print_results_cache(const char *filename, int bm_pid, return -1; } - fprintf(fp, "Pid: %d \t llc_value: %lu\n", bm_pid, llc_value); + fprintf(fp, "Pid: %d \t llc_value: %llu\n", bm_pid, llc_value); fclose(fp); } @@ -182,7 +178,7 @@ static int print_results_cache(const char *filename, int bm_pid, */ static int perf_event_measure(const char *filename, int bm_pid) { - unsigned long llc_perf_miss = 0; + __u64 llc_perf_miss = 0; int ret; ret = get_llc_perf(&llc_perf_miss); @@ -285,11 +281,10 @@ int cat_val(struct resctrl_val_param *param, size_t span) * @cache_span: Cache span * @lines: @cache_span in lines or bytes */ -void show_cache_info(int no_of_bits, unsigned long avg_llc_val, - size_t cache_span, bool lines) +void show_cache_info(int no_of_bits, __u64 avg_llc_val, size_t cache_span, bool lines) { ksft_print_msg("Number of bits: %d\n", no_of_bits); - ksft_print_msg("Average LLC val: %lu\n", avg_llc_val); + ksft_print_msg("Average LLC val: %llu\n", avg_llc_val); ksft_print_msg("Cache span (%s): %zu\n", lines ? "lines" : "bytes", cache_span); } diff --git a/tools/testing/selftests/resctrl/cat_test.c b/tools/testing/selftests/resctrl/cat_test.c index 0955f819bd83..516eaa08e967 100644 --- a/tools/testing/selftests/resctrl/cat_test.c +++ b/tools/testing/selftests/resctrl/cat_test.c @@ -41,12 +41,12 @@ static int cat_setup(struct resctrl_val_param *p) return ret; } -static int show_results_info(unsigned long sum_llc_val, int no_of_bits, +static int show_results_info(__u64 sum_llc_val, int no_of_bits, unsigned long cache_span, unsigned long max_diff, unsigned long max_diff_percent, unsigned long num_of_runs, bool platform) { - unsigned long avg_llc_val = 0; + __u64 avg_llc_val = 0; float diff_percent; int ret; @@ -68,8 +68,8 @@ static int show_results_info(unsigned long sum_llc_val, int no_of_bits, static int check_results(struct resctrl_val_param *param, size_t span) { char *token_array[8], temp[512]; - unsigned long sum_llc_perf_miss = 0; int runs = 0, no_of_bits = 0; + __u64 sum_llc_perf_miss = 0; FILE *fp; ksft_print_msg("Checking for pass/fail\n"); @@ -93,7 +93,7 @@ static int check_results(struct resctrl_val_param *param, size_t span) * setup transition phase. */ if (runs > 0) - sum_llc_perf_miss += strtoul(token_array[3], NULL, 0); + sum_llc_perf_miss += strtoull(token_array[3], NULL, 0); runs++; } diff --git a/tools/testing/selftests/resctrl/resctrl.h b/tools/testing/selftests/resctrl/resctrl.h index 4186d61abd33..9aac7b66ada8 100644 --- a/tools/testing/selftests/resctrl/resctrl.h +++ b/tools/testing/selftests/resctrl/resctrl.h @@ -113,8 +113,7 @@ unsigned int count_bits(unsigned long n); void cmt_test_cleanup(void); int get_core_sibling(int cpu_no); int measure_llc_resctrl(const char *filename, int bm_pid); -void show_cache_info(int no_of_bits, unsigned long avg_llc_val, - size_t cache_span, bool lines); +void show_cache_info(int no_of_bits, __u64 avg_llc_val, size_t cache_span, bool lines); /* * cache_portion_size - Calculate the size of a cache portion