From: Richael Zhuang <richael.zhuang@arm.com> To: dev@dpdk.org Cc: nd@arm.com, alan.carew@intel.com, stable@dpdk.org, David Hunt <david.hunt@intel.com>, Pablo de Lara <pablo.de.lara.guarch@intel.com> Subject: [dpdk-stable] [PATCH v4 1/2] test/power: round cpuinfo cur freq value in cpufreq autotest Date: Thu, 15 Apr 2021 13:39:22 +0800 Message-ID: <20210415053923.3447-2-richael.zhuang@arm.com> (raw) In-Reply-To: <20210415053923.3447-1-richael.zhuang@arm.com> The value in "/sys/.../cpuinfo_cur_freq" may not be exactly the same as what was set. For example, if "2400000" is written to "/sys/.../cpufreq/scaling_setspeed" to set the frequency, then the value in "/sys/.../cpuinfo_cur_freq" may be "2401222". So need to round the value. Fixes: ed7c51a6a680 ("app/test: vm power management") Cc: alan.carew@intel.com Cc: stable@dpdk.org Signed-off-by: Richael Zhuang <richael.zhuang@arm.com> --- app/test/test_power_cpufreq.c | 16 +++++++++++++++- 1 file changed, 15 insertions(+), 1 deletion(-) diff --git a/app/test/test_power_cpufreq.c b/app/test/test_power_cpufreq.c index 731c6b4dc..1f4d8bb05 100644 --- a/app/test/test_power_cpufreq.c +++ b/app/test/test_power_cpufreq.c @@ -34,6 +34,10 @@ test_power_caps(void) #define TEST_POWER_LCORE_INVALID ((unsigned)RTE_MAX_LCORE) #define TEST_POWER_FREQS_NUM_MAX ((unsigned)RTE_MAX_LCORE_FREQS) +/* macros used for rounding frequency to nearest 100000 */ +#define TEST_FREQ_ROUNDING_DELTA 50000 +#define TEST_ROUND_FREQ_TO_N_100000 100000 + #define TEST_POWER_SYSFILE_CUR_FREQ \ "/sys/devices/system/cpu/cpu%u/cpufreq/cpuinfo_cur_freq" @@ -62,7 +66,17 @@ check_cur_freq(unsigned lcore_id, uint32_t idx) goto fail_get_cur_freq; } cur_freq = strtoul(buf, NULL, TEST_POWER_CONVERT_TO_DECIMAL); - ret = (freqs[idx] == cur_freq ? 0 : -1); + + /* convert the frequency to nearest 100000 value + * Ex: if cur_freq=1396789 then freq_conv=1400000 + * Ex: if cur_freq=800030 then freq_conv=800000 + */ + unsigned int freq_conv = 0; + freq_conv = (cur_freq + TEST_FREQ_ROUNDING_DELTA) + / TEST_ROUND_FREQ_TO_N_100000; + freq_conv = freq_conv * TEST_ROUND_FREQ_TO_N_100000; + + ret = (freqs[idx] == freq_conv ? 0 : -1); fail_get_cur_freq: fclose(f); -- 2.20.1
next prev parent reply other threads:[~2021-04-15 5:39 UTC|newest] Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-04-06 3:04 [dpdk-stable] [PATCH v1 2/2] test/power: fix a bug " Richael Zhuang 2021-04-06 3:41 ` Richael Zhuang 2021-04-07 2:39 ` [dpdk-stable] [PATCH v2 " Richael Zhuang [not found] ` <20210407074636.26891-1-richael.zhuang@arm.com> 2021-04-07 7:46 ` [dpdk-stable] [PATCH v3 1/3] test/power: round cpuinfo cur freq value " Richael Zhuang [not found] ` <20210415053923.3447-1-richael.zhuang@arm.com> 2021-04-15 5:39 ` Richael Zhuang [this message] 2021-04-15 5:39 ` [dpdk-stable] [PATCH v4 2/2] test/power: add delay before checking cpuinfo cur freq Richael Zhuang [not found] ` <20210415055930.3899-1-richael.zhuang@arm.com> 2021-04-15 5:59 ` [dpdk-stable] [PATCH v5 1/2] " Richael Zhuang 2021-04-20 12:38 ` David Hunt 2021-04-20 13:15 ` David Hunt 2021-04-21 2:41 ` Richael Zhuang 2021-04-15 5:59 ` [dpdk-stable] [PATCH v5 2/2] test/power: round cpuinfo cur freq value in cpufreq autotest Richael Zhuang 2021-04-20 14:01 ` David Hunt 2021-04-07 7:46 ` [dpdk-stable] [PATCH v3 2/3] test/power: fix a bug " Richael Zhuang 2021-04-07 9:58 ` [dpdk-stable] [dpdk-dev] " Burakov, Anatoly 2021-04-08 2:10 ` Richael Zhuang 2021-04-08 14:55 ` Burakov, Anatoly 2021-04-14 8:29 ` Richael Zhuang 2021-04-07 7:46 ` [dpdk-stable] [PATCH v3 3/3] test/power: add delay before checking cpuinfo cur freq Richael Zhuang 2021-04-07 10:14 ` [dpdk-stable] [dpdk-dev] " Liang Ma 2021-04-08 5:10 ` Richael Zhuang 2021-04-08 5:16 ` Richael Zhuang 2021-04-08 7:54 ` Liang Ma
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