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linux/tools/testing
Vipin Sharma d886724ea8 KVM: selftests: Allowing running dirty_log_perf_test on specific CPUs
Add a command line option, -c, to pin vCPUs to physical CPUs (pCPUs),
i.e.  to force vCPUs to run on specific pCPUs.

Requirement to implement this feature came in discussion on the patch
"Make page tables for eager page splitting NUMA aware"
https://lore.kernel.org/lkml/YuhPT2drgqL+osLl@google.com/

This feature is useful as it provides a way to analyze performance based
on the vCPUs and dirty log worker locations, like on the different NUMA
nodes or on the same NUMA nodes.

To keep things simple, implementation is intentionally very limited,
either all of the vCPUs will be pinned followed by an optional main
thread or nothing will be pinned.

Signed-off-by: Vipin Sharma <vipinsh@google.com>
Suggested-by: David Matlack <dmatlack@google.com>
Reviewed-by: Sean Christopherson <seanjc@google.com>
Link: https://lore.kernel.org/r/20221103191719.1559407-8-vipinsh@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
2022-11-16 10:03:24 -08:00
..
crypto/chacha20-s390 tools/testing/crypto: Use vzalloc instead of vmalloc+memset 2022-07-05 14:46:36 +02:00
cxl tools/testing/cxl: Add a single-port host-bridge regression config 2022-11-04 16:01:24 -07:00
fault-injection
ktest bootconfig/tracing/ktest: Update ktest example for boot-time tracing 2021-08-16 11:39:51 -04:00
kunit kunit: tool: Don't download risc-v opensbi firmware with wget 2022-10-07 10:16:28 -06:00
memblock memblock: test suite improvements 2022-10-11 20:48:55 -07:00
nvdimm ndtest: Cleanup all of blk namespace specific code 2022-07-12 17:57:55 -07:00
radix-tree lib/test_maple_tree: add testing for maple tree 2022-09-26 19:46:14 -07:00
scatterlist tools/testing/scatterlist: add missing defines 2022-01-30 09:56:58 +02:00
selftests KVM: selftests: Allowing running dirty_log_perf_test on specific CPUs 2022-11-16 10:03:24 -08:00
vsock vsock_test: POLLIN + SO_RCVLOWAT test 2022-08-23 10:43:12 +02:00