Torture-test changes for 4.7
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| # | Subject and files | Size | Replies | Applied |
|---|---|---|---|---|
| 1/24 | rcutorture: Update scripting to accommodate rcuperftools/ tools/ tools/ +4 more | +161 | 0 replies | |
| 2/24 | rcutorture: Allow for rcupdate.rcu_normalkernel/ | +2 | 0 replies | |
| 3/24 | rcutorture: Expedited-GP batch progress access to torturinginclude/ include/ kernel/ | +40 | 0 replies | |
| 4/24 | rcutorture: Add RCU grace-period performance testskernel/ kernel/ lib/ | +671 | 0 replies | |
| 5/24 | rcutorture: Documentation for rcuperf kernel parametersDocumentation/ | +32 | 0 replies | |
| 6/24 | rcutorture: Bind rcuperf reader/writer kthreads to CPUskernel/ | +4 | 0 replies | |
| 7/24 | rcutorture: Set rcuperf writer kthreads to real-time prioritykernel/ | +3 | 0 replies | |
| 8/24 | rcutorture: Print measure of batching efficiencytools/ | +16 | 0 replies | |
| 9/24 | rcutorture: Make rcuperf collect expedited event-trace datakernel/ tools/ | +2 | 0 replies | |
| 10/24 | rcutorture: Make scripts analyze rcuperf trace data, if presenttools/ tools/ | +129 | 0 replies | |
| 11/24 | rcutorture: Add rcuperf holdoff boot parameter to reduce interferenceDocumentation/ kernel/ | +11 | 0 replies | |
| 12/24 | rcutorture: Avoid RCU CPU stall warning and RT throttlingkernel/ | +4 | 0 replies | |
| 13/24 | rcutorture: Add largish-system rcuperf scenariotools/ | +23 | 0 replies | |
| 14/24 | rcuperf: Do not wake up shutdown wait queue if "shutdown" is false.kernel/ | +4 | 0 replies | |
| 15/24 | rcutorture: Remove redundant initialization to zerokernel/ | +2 | 0 replies | |
| 16/24 | rcutorture: Consider FROZEN hotplug notifier transitionskernel/ | +1 | 0 replies | |
| 17/24 | torture: Clarify refusal to run more than one torture testkernel/ | +2 | 0 replies | |
| 18/24 | torture: Kill qemu, not parent processtools/ | +24 | 0 replies | |
| 19/24 | rcutorture: Convert test duration to seconds earlytools/ tools/ | +4 | 0 replies | |
| 20/24 | rcutorture: Add OS-jitter capabilitytools/ tools/ | +101 | 0 replies | |
| 21/24 | rcutorture: Don't rebuild identical kerneltools/ | +19 | 0 replies | |
| 22/24 | rcutorture: Dump trace buffer upon shutdownkernel/ | +1 | 0 replies | |
| 23/24 | rcutorture: Add irqs-disabled test for call_rcu()kernel/ | +2 | 0 replies | |
| 24/24 | rcutorture: Add boot-time adjustment of leaf fanouttools/ tools/ | +2 | 0 replies |
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Cover letter [PATCH tip/core/rcu 0/24] Torture-test changes for 4.7
Hello!
This series contains torture-test changes for RCU, most notably a new test for performance of RCU grace periods named "rcuperf":
1. Update scripting to accommodate rcuperf.
2. Allow for rcupdate.rcu_normal in rcu_torture_writer() decisions.
3. Expedited-GP batch progress access to torturing for progress
statistics.
4. Add RCU grace-period performance tests, AKA "rcuperf".
5. Documentation for rcuperf kernel parameters.
6. Bind rcuperf reader/writer kthreads to CPUs.
7. Set rcuperf writer kthreads to real-time priority.
8. Print measure of batching efficiency.
9. Make rcuperf collect expedited event-trace data.
10. Make scripts analyze rcuperf trace data, if present.
11. Add rcuperf holdoff boot parameter to reduce interference.
12. Avoid RCU CPU stall warning and RT throttling.
13. Add largish-system rcuperf scenario.
14. Do not wake up shutdown wait queue if "shutdown" is false, courtesy
of Artem Savkov.
15. Remove redundant initialization to zero.
16. Consider FROZEN hotplug notifier transitions, courtesy of
Anna-Maria Gleixner.
17. Clarify refusal to run more than one torture test.
18. Kill qemu, not parent process.
19. Convert test duration to seconds early.
20. Add OS-jitter capability.
21. Don't rebuild identical kernel.
22. Dump trace buffer upon shutdown.
23. Add irqs-disabled test for call_rcu().
24. Add boot-time adjustment of leaf fanout.
Thanx, Paul
------------------------------------------------------------------------
Documentation/kernel-parameters.txt | 38 include/linux/rcutiny.h | 16 include/linux/rcutree.h | 2 kernel/rcu/Makefile | 1 kernel/rcu/rcuperf.c | 661 +++++++++- kernel/rcu/rcutorture.c | 12 kernel/rcu/tree.c | 22 kernel/torture.c | 4 lib/Kconfig.debug | 33 tools/testing/selftests/rcutorture/bin/jitter.sh | 83 + tools/testing/selftests/rcutorture/bin/kvm-recheck-rcuperf-ftrace.sh | 121 + tools/testing/selftests/rcutorture/bin/kvm-recheck-rcuperf.sh | 116 + tools/testing/selftests/rcutorture/bin/kvm-recheck.sh | 5 tools/testing/selftests/rcutorture/bin/kvm-test-1-run.sh | 61 tools/testing/selftests/rcutorture/bin/kvm.sh | 24 tools/testing/selftests/rcutorture/configs/rcu/TREE04 | 2 tools/testing/selftests/rcutorture/configs/rcu/TREE04.boot | 2 tools/testing/selftests/rcutorture/configs/rcuperf/CFLIST | 1 tools/testing/selftests/rcutorture/configs/rcuperf/CFcommon | 2 tools/testing/selftests/rcutorture/configs/rcuperf/TREE | 20 tools/testing/selftests/rcutorture/configs/rcuperf/TREE54 | 23 tools/testing/selftests/rcutorture/configs/rcuperf/ver_functions.sh | 52 22 files changed, 1260 insertions(+), 41 deletions(-)