Linaro Stable Kernel (LSK)

pmu_cci_test_scn11 failed when it is running in full execution

Bug #1274474 reported by Naresh Kamboju on 2014-01-30

This bug affects 1 person

Affects		Status	Importance	Assigned to	Milestone
	Linaro Stable Kernel (LSK)	Incomplete	Medium	Unassigned

Bug Description

pmu_cci_test_scn11 failed when it is running in full execution. passed independently.

Test failed in full run:
------------------------------
Hotplugging off CPU=4 for test.
../../common/perf stat -o 1000.dat -x, -a -C 0 -e CCI/config=0xFF,name=cci_cycles/,CCI/config=0x63,name=cci_a15_cacheable_read/,CCI/config=0x6c,name=cci_a15_any_write/,CCI/config=0x6f,name=cci_a15_shareable_write/,CCI/config=0x72,name=cci_a15_evict_write/,CCI/config=0x80,name=cci_a7_read/,CCI/config=0x8c,name=cci_a7_write/ ../../common/taskset 0x18 ../../common/cache -w -l 1000
../../common/perf stat -o 5000.dat -x, -a -C 0 -e CCI/config=0xFF,name=cci_cycles/,CCI/config=0x63,name=cci_a15_cacheable_read/,CCI/config=0x6c,name=cci_a15_any_write/,CCI/config=0x6f,name=cci_a15_shareable_write/,CCI/config=0x72,name=cci_a15_evict_write/,CCI/config=0x80,name=cci_a7_read/,CCI/config=0x8c,name=cci_a7_write/ ../../common/taskset 0x18 ../../common/cache -w -l 5000
../../common/perf stat -o 10000.dat -x, -a -C 0 -e CCI/config=0xFF,name=cci_cycles/,CCI/config=0x63,name=cci_a15_cacheable_read/,CCI/config=0x6c,name=cci_a15_any_write/,CCI/config=0x6f,name=cci_a15_shareable_write/,CCI/config=0x72,name=cci_a15_evict_write/,CCI/config=0x80,name=cci_a7_read/,CCI/config=0x8c,name=cci_a7_write/ ../../common/taskset 0x18 ../../common/cache -w -l 10000
Hotplugging back CPU=4.
FAIL: RATIO=1.407 should be 1+/-0.15 for EVENT=cci_a15_shareable_write at SCALE=5000
MP_CCI_TEST_SCN11 Failed

Test passed independently
--------------------------------------
Hotplugging off CPU=4 for test.
../../common/perf stat -o 1000.dat -x, -a -C 0 -e CCI/config=0xFF,name=cci_cycles/,CCI/config=0x63,name=cci_a15_cacheable_read/,CCI/config=0x6c,name=cci_a15_any_write/,CCI/config=0x6f,name=cci_a15_shareable_write/,CCI/config=0x72,name=cci_a15_evict_write/,CCI/config=0x80,name=cci_a7_read/,CCI/config=0x8c,name=cci_a7_write/ ../../common/taskset 0x18 ../../common/cache -w -l 1000
../../common/perf stat -o 5000.dat -x, -a -C 0 -e CCI/config=0xFF,name=cci_cycles/,CCI/config=0x63,name=cci_a15_cacheable_read/,CCI/config=0x6c,name=cci_a15_any_write/,CCI/config=0x6f,name=cci_a15_shareable_write/,CCI/config=0x72,name=cci_a15_evict_write/,CCI/config=0x80,name=cci_a7_read/,CCI/config=0x8c,name=cci_a7_write/ ../../common/taskset 0x18 ../../common/cache -w -l 5000
../../common/perf stat -o 10000.dat -x, -a -C 0 -e CCI/config=0xFF,name=cci_cycles/,CCI/config=0x63,name=cci_a15_cacheable_read/,CCI/config=0x6c,name=cci_a15_any_write/,CCI/config=0x6f,name=cci_a15_shareable_write/,CCI/config=0x72,name=cci_a15_evict_write/,CCI/config=0x80,name=cci_a7_read/,CCI/config=0x8c,name=cci_a7_write/ ../../common/taskset 0x18 ../../common/cache -w -l 10000
Hotplugging back CPU=4.
MP_CCI_TEST_SCN11 Passed

Linux kernel version:
-----------------------------
Linux version 3.10.28-00393-g0f3550b (jenkins-build@ip-10-13-133-105) (gcc version 4.8.3 20140106 (prerelease) (Linaro GCC 4.8-2014.01) ) #1 SMP Mon Jan 27 20:06:02 UTC 2014-

LSK Android build:
--------------------------
https://android-build.linaro.org/builds/~linaro-android/vexpress-lsk-14.01-release/#build=4

See original description

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