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From: Xueming Li <xuemingl@nvidia.com>
To: Richael Zhuang <richael.zhuang@arm.com>
CC: Luca Boccassi <bluca@debian.org>, David Hunt <david.hunt@intel.com>, dpdk
stable <stable@dpdk.org>
Date: Tue, 11 May 2021 00:02:40 +0800
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Subject: [dpdk-stable] patch 'test/power: round CPU frequency to check' has
been queued to stable release 20.11.2
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Sender: "stable" <stable-bounces@dpdk.org>
Hi,
FYI, your patch has been queued to stable release 20.11.2
Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 05/12/21. So please
shout if anyone has objections.
Also note that after the patch there's a diff of the upstream commit vs the
patch applied to the branch. This will indicate if there was any rebasing
needed to apply to the stable branch. If there were code changes for rebasing
(ie: not only metadata diffs), please double check that the rebase was
correctly done.
Queued patches are on a temporary branch at:
https://github.com/steevenlee/dpdk
This queued commit can be viewed at:
https://github.com/steevenlee/dpdk/commit/8347ba1646e41c9ccb2a5addc30b8996f487c142
Thanks.
Xueming Li <xuemingl@nvidia.com>
---
>From 8347ba1646e41c9ccb2a5addc30b8996f487c142 Mon Sep 17 00:00:00 2001
From: Richael Zhuang <richael.zhuang@arm.com>
Date: Thu, 15 Apr 2021 13:59:30 +0800
Subject: [PATCH] test/power: round CPU frequency to check
Cc: Luca Boccassi <bluca@debian.org>
[ upstream commit 606a234c6d3607c93a0426bdccdbf9aaa2b8e5f6 ]
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")
Signed-off-by: Richael Zhuang <richael.zhuang@arm.com>
Reviewed-by: David Hunt <david.hunt@intel.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 d47b3e0a1a..f753d24ac5 100644
--- a/app/test/test_power_cpufreq.c
+++ b/app/test/test_power_cpufreq.c
@@ -35,6 +35,10 @@ 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"
@@ -67,7 +71,17 @@ check_cur_freq(unsigned lcore_id, uint32_t idx)
goto fail_all;
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);
if (ret == 0)
break;
--
2.25.1
---
Diff of the applied patch vs upstream commit (please double-check if non-empty:
---
--- - 2021-05-10 23:59:32.017043100 +0800
+++ 0212-test-power-round-CPU-frequency-to-check.patch 2021-05-10 23:59:26.670000000 +0800
@@ -1 +1 @@
-From 606a234c6d3607c93a0426bdccdbf9aaa2b8e5f6 Mon Sep 17 00:00:00 2001
+From 8347ba1646e41c9ccb2a5addc30b8996f487c142 Mon Sep 17 00:00:00 2001
@@ -4,0 +5,3 @@
+Cc: Luca Boccassi <bluca@debian.org>
+
+[ upstream commit 606a234c6d3607c93a0426bdccdbf9aaa2b8e5f6 ]
@@ -13 +15,0 @@
-Cc: stable@dpdk.org