stress-ng V0.18.10 "numa enhanced strainer"

New Features

• Make cachehammer stressor more stressful on cache
• New numa options to attempt to bind pages to randomly selected NUMA nodes (see below)
• Add gcc branch hinting to all critical if/else branches to improve branch performance.
• madvise stressor, add MADV_GUARD_* flags
• stress-x86cpuid, add some new CPU ids

New Options

• new --vm-addr-numa option
• new --pagemove-numa option
• new --mremap-numa option
• new --mmapmany-numa option
• new --mmaphuge-numa option
• new --mmapfixed-numa option
• new --memfiles-numa option
• new --memfd-numa option
• new --mcontend-numa option
• new --llc-affinity-numa option

Detailed Changelog

[Christian Franke]

• stress-acl: reduce ACL testcases on Cygwin

[Colin Ian King]

• stress-mlockmany: make mlockmany mlocks less OOMy
• stress-sigill: also handle SIGBUS signals
• stress-bitops: fix assignment of is_pwr2
• core-out-of-memory: core-*: replace %jd with PRIdMAX
• core*: add some LIKELY/UNLIKELY branch hints
• stress*: add some LIKELY/UNLIKELY branch hints
• Manual: Fix typo "mmaphuge-numa" -> "mmanmany-numa"
• stress-intmath: clean up if/else statement
• stress-sigill: add extra illegal opcode for arm v6
• stress-cachehammer: cast return from mmap to uint8_t *
• core-cpuidle: make cpuidle_path a little larger
• stress-fsize: fix 32 bit file size limits, force truncate each time
• stress-mmahuge: rename ctxt to context
• stress-mmaphuge: ensure ctxt.fd is also initialized
• stress-mmaphuge: ensure ctxt.numa_mask is initialized
• stress-readahead: replace %jx with PRIxMAX
• core-thrash: replace %jx sscanf with 32/64 bit portable version
• core-thrash: read some memory related /sysfs files for Linux
• stress-madvise: exercise MADV_GUARD_* flags
• stress-sigsegv: exercise MADV_GUARD_INSTALL protected pages
• kernel-coverage.sh: ignore genhtml inconsistent errors
• stress-*: ensure numa mask frees are performed correctly
• stress-cpu-sched: only call stress_numa_mask_alloc if alloc succeeded
• stress-cachehammer: only call stress_numa_mask_alloc if alloc succeeded
• core-numa: ignore null numa_mask and buffer ptr in stress_numa_randomize_pages
• core-: stress-: replace %jd, %ju, %jx with PRIdMAX, PRIuMAX, PRIxMAX
• stress-cacheline: disable unrolling in stress_cacheline_rdfwd64 for clang
• core-, stress-: Fix typos in comments
• kernel-coverage: add more stressor numa options for more coverage
• stress-vm-addr: add --vm-addr-numa option
• stress-pagemove: add --pagemove-numa option
• core-numa: should be mbinding to prev_ptr rather than ptr
• stress-llc-affinity: replace spaces with tab
• core-numa: optimize mbind calls to handle multiple runs of same node
• stress-mremap: add --mremap-numa option
• stress-*: Fix typo "randonly" -> "randomly"
• stress-mmapmany: add --mmapmany-numa option
• Manual: fix --ioport-opts description, it's missing some text
• stress-mmapfixed: correct cut-n-paste spelling mistakes
• stress-mmaphuge: add --mmaphuge-numa option
• stress-mmapfiles: move numa_nodes alloc and free to main body
• stress-memfd: add in missing free of numa_nodes
• stress-mcontend: free numa_mask once it is no longer used
• stress-lockbus: free numa_mask once it is no longer used
• stress-llc-affinity: add in missing free of numa_nodes
• stress-mmapfixed: add --mmapfixed-numa option
• kernel-coverage: add stressor numa options for more coverage
• stress-mmapfiles: add --memfiles-numa option
• stress-memfd: add --memfd-numa option
• core-numa: make buffer a void * pointer
• stress-mcontend: add --mcontend-numa option
• stress-cachehammer: exercise various cache options with memory access too
• stress-llc-affinity: add --llc-affinity-numa option
• stress-cachehammer: add more comments, add more code for ppc64 testing
• stress-cachehammer: add prefetch read and add some missing memory barriers
• stress-cachehammer: add some UNLIKELY branch hints
• stress-cachehammer: add write + flush cache methods
• stress-cachehammer: free page after use, cleans up resource leak
• stress-cachehammer: remove incorrect short optarg option in help
• stress-cachehammer: fix short help name of stressor
• stress-cachehammer: cycle addr2 around the buffer
• stress-cachehammer: exercise two addresses per hammer operation
• stress-madvise: add zero size null address madvise call
• stress-cachehammer: use register func pointer hammer for hammer function calls
• stress-af-alg-defconfigs: remove pkcs1pad variants
• stress-cachehammer: fix leak of file descriptor fd
• stress-af-alg: handle all bind failures the same way
• stress-cachehammer: add shared file mmap'd page cache hammering
• stress-cache: report signal name and number when catching rogue signals
• stress-x86cpuid: update with new CPU ids from wikipedia
• README.md: Add another kernel issue found with stress-ng
• stress-af-alg: add missing af-alg names and types to failure messages
• stress-cpu: rename macro and variables to not contain leading _
• stress-cachehammer: ensure loops is at least 1 for 1 iteration
• Manual: fix --mmap-bytes description
• README.md add another link to a paper that references stress-ng