From: Len Brown <lenb@kernel.org>
To: linux-pm@vger.kernel.org
Cc: Len Brown <len.brown@intel.com>
Subject: [PATCH 3/5] tools/power turbostat: correctly decode of ENERGY_PERFORMANCE_BIAS
Date: Wed, 27 May 2015 18:08:04 -0400 [thread overview]
Message-ID: <e9be7dd62899194ebdd90d417fc6c07d5d157912.1432764245.git.len.brown@intel.com> (raw)
In-Reply-To: <1432764486-3517-1-git-send-email-lenb@kernel.org>
In-Reply-To: <e275b3885dffd31095984ed2476ed0447fa7309a.1432764245.git.len.brown@intel.com>
From: Len Brown <len.brown@intel.com>
When EPB is 0xF, turbosat was incorrectly describing it as "custom"
instead of calling it "powersave":
< cpu0: MSR_IA32_ENERGY_PERF_BIAS: 0x0000000f (custom)
> cpu0: MSR_IA32_ENERGY_PERF_BIAS: 0x0000000f (powersave)
Signed-off-by: Len Brown <len.brown@intel.com>
---
tools/power/x86/turbostat/turbostat.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/power/x86/turbostat/turbostat.c b/tools/power/x86/turbostat/turbostat.c
index 256a5e1..f92211e 100644
--- a/tools/power/x86/turbostat/turbostat.c
+++ b/tools/power/x86/turbostat/turbostat.c
@@ -1919,7 +1919,7 @@ int print_epb(struct thread_data *t, struct core_data *c, struct pkg_data *p)
if (get_msr(cpu, MSR_IA32_ENERGY_PERF_BIAS, &msr))
return 0;
- switch (msr & 0x7) {
+ switch (msr & 0xF) {
case ENERGY_PERF_BIAS_PERFORMANCE:
epb_string = "performance";
break;
--
2.4.1.314.g9532ead
next prev parent reply other threads:[~2015-05-27 22:08 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-05-27 22:08 turbostat patches staged for Linux 4.1-rc5 Len Brown
2015-05-27 22:08 ` [PATCH 1/5] tools/power turbostat: correctly display more than 2 threads/core Len Brown
2015-05-27 22:08 ` [PATCH 2/5] tools/power turbostat: enable turbostat to support Knights Landing (KNL) Len Brown
2015-05-27 22:08 ` Len Brown [this message]
2015-05-27 22:08 ` [PATCH 4/5] tools/power turbostat: allow running without cpu0 Len Brown
2015-05-27 22:08 ` [PATCH 5/5] tools/power turbostat: update version number to 4.7 Len Brown
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