User:Maffblaster/Drafts/stress-ng
From Gentoo Wiki
< User:Maffblaster | Drafts
Jump to:navigation
Jump to:search
stress-ng is a "next generation" tool designed to stress test system hardware.
Installation
Emerge
There are no USE flags for stress-ng at this time.
Emerge the software:
root #emerge --ask app-benchmarks/stress-ngConfiguration
Configuration for stress is limited to command-line options.
Usage
Invocation
user $stress-ng --helpstress-ng, version 0.05.12
Usage: stress-ng [OPTION [ARG]]
General control options:
--aggressive enable all aggressive options
-a N, --all N start N workers of each stress test
-b N, --backoff N wait of N microseconds before work starts
--class name specify a class of stressors, use with --sequential
-n, --dry-run do not run
-h, --help show help
-k, --keep-name keep stress worker names to be 'stress-ng'
--log-brief less verbose log messages
--log-file filename log messages to a log file
--maximize enable maximum stress options
-M, --metrics print pseudo metrics of activity
--metrics-brief enable metrics and only show non-zero results
--minimize enable minimal stress options
--no-madvise don't use random madvise options for each mmap
--page-in touch allocated pages that are not in core
--perf display perf statistics
-q, --quiet quiet output
-r, --random N start N random workers
--sched type set scheduler type
--sched-prio N set scheduler priority level N
--sequential N run all stressors one by one, invoking N of them
--syslog log messages to the syslog
--temp-path specify path for temporary directories and files
-t N, --timeout N timeout after N seconds
--timer-slack enable timer slack mode
--times show run time summary at end of the run
--tz collect temperatures from thermal zones (Linux only)
-v, --verbose verbose output
--verify verify results (not available on all tests)
-V, --version show version
-Y, --yaml output results to YAML formatted filed
-x, --exclude list of stressors to exclude (not run)
Stressor specific options:
--affinity N start N workers that rapidly change CPU affinity
--affinity-ops N stop after N affinity bogo operations
--affinity-rand change affinity randomly rather than sequentially
--af-alg N start N workers that stress AF_ALG socket domain
--af-alg-ops N stop after N af-alg bogo operations
--aio N start N workers that issue async I/O requests
--aio-ops N stop after N bogo async I/O requests
--aio-requests N number of async I/O requests per worker
--aiol N start N workers that issue async I/O requests via Linux aio
--aiol-ops N stop after N bogo Linux aio async I/O requests
--aiol-requests N number of Linux aio async I/O requests per worker
-B N, --bigheap N start N workers that grow the heap using calloc()
--bigheap-ops N stop after N bogo bigheap operations
--bigheap-growth N grow heap by N bytes per iteration
--brk N start N workers performing rapid brk calls
--brk-ops N stop after N brk bogo operations
--brk-notouch don't touch (page in) new data segment page
--bsearch N start N workers that exercise a binary search
--bsearch-ops N stop after N binary search bogo operations
--bsearch-size N number of 32 bit integers to bsearch
-C N, --cache N start N CPU cache thrashing workers
--cache-ops N stop after N cache bogo operations
--cache-prefetch prefetch on memory reads/writes
--cache-flush flush cache after every memory write (x86 only)
--cache-fence serialize stores (x86 only)
--cache-level N only exercise specified cache
--cache-ways N only fill specified number of cache ways
--chdir N start N workers thrashing chdir on many paths
--chdir-ops N stop chdir workers after N bogo chdir operations
--chmod N start N workers thrashing chmod file mode bits
--chmod-ops N stop chmod workers after N bogo operations
--clock N start N workers thrashing clocks and POSIX timers
--clock-ops N stop clock workers after N bogo operations
--clone N start N workers that rapidly create and reap clones
--clone-ops N stop after N bogo clone operations
--clone-max N set upper limit of N clones per worker
--context N start N workers exercising user context
--context-ops N stop context workers after N bogo operations
-c N, --cpu N start N workers spinning on sqrt(rand())
--cpu-ops N stop after N cpu bogo operations
-l P, --cpu-load P load CPU by P %%, 0=sleep, 100=full load (see -c)
--cpu-load-slice S specify time slice during busy load
--cpu-method m specify stress cpu method m, default is all
--cpu-online N start N workers offlining/onlining the CPUs
--cpu-online-ops N stop after N offline/online operations
--crypt N start N workers performing password encryption
--crypt-ops N stop after N bogo crypt operations
--daemon N start N workers creating multiple daemons
--daemon-ops N stop when N daemons have been created
-D N, --dentry N start N dentry thrashing stressors
--dentry-ops N stop after N dentry bogo operations
--dentry-order O specify dentry unlink order (reverse, forward, stride)
--dentries N create N dentries per iteration
--dir N start N directory thrashing stressors
--dir-ops N stop after N directory bogo operations
--dup N start N workers exercising dup/close
--dup-ops N stop after N dup/close bogo operations
--epoll N start N workers doing epoll handled socket activity
--epoll-ops N stop after N epoll bogo operations
--epoll-port P use socket ports P upwards
--epoll-domain D specify socket domain, default is unix
--eventfd N start N workers stressing eventfd read/writes
--eventfd-ops N stop eventfd workers after N bogo operations
--exec N start N workers spinning on fork() and exec()
--exec-ops N stop after N exec bogo operations
--exec-max P create P workers per iteration, default is 1
--fallocate N start N workers fallocating 16MB files
--fallocate-ops N stop after N fallocate bogo operations
--fallocate-bytes N specify size of file to allocate
--fault N start N workers producing page faults
--fault-ops N stop after N page fault bogo operations
--fiemap N start N workers exercising the FIEMAP ioctl
--fiemap-ops N stop after N FIEMAP ioctl bogo operations
--fifo N start N workers exercising fifo I/O
--fifo-ops N stop after N fifo bogo operations
--fifo-readers N number of fifo reader stessors to start
--filename N start N workers exercising filenames
--filename-ops N stop after N filename bogo operations
--filename-opts opt specify allowed filename options
--fcntl N start N workers exercising fcntl commands
--fcntl-ops N stop after N fcntl bogo operations
--flock N start N workers locking a single file
--flock-ops N stop after N flock bogo operations
-f N, --fork N start N workers spinning on fork() and exit()
--fork-ops N stop after N fork bogo operations
--fork-max P create P workers per iteration, default is 1
--fstat N start N workers exercising fstat on files
--fstat-ops N stop after N fstat bogo operations
--fstat-dir path fstat files in the specified directory
--futex N start N workers exercising a fast mutex
--futex-ops N stop after N fast mutex bogo operations
--get N start N workers exercising the get*() system calls
--get-ops N stop after N get bogo operations
--getrandom N start N workers fetching random data via getrandom()
--getrandom-ops N stop after N getrandom bogo operations
--handle N start N workers exercising name_to_handle_at
--handle-ops N stop after N handle bogo operations
-d N, --hdd N start N workers spinning on write()/unlink()
--hdd-ops N stop after N hdd bogo operations
--hdd-bytes N write N bytes per hdd worker (default is 1GB)
--hdd-opts list specify list of various stressor options
--hdd-write-size N set the default write size to N bytes
--hsearch N start N workers that exercise a hash table search
--hsearch-ops N stop afer N hash search bogo operations
--hsearch-size N number of integers to insert into hash table
--icache N start N CPU instruction cache thrashing workers
--icache-ops N stop after N icache bogo operations
--inotify N start N workers exercising inotify events
--inotify-ops N stop inotify workers after N bogo operations
-i N, --io N start N workers spinning on sync()
--io-ops N stop after N io bogo operations
--ionice-class C specify ionice class (idle, besteffort, realtime)
--ionice-level L specify ionice level (0 max, 7 min)
--itimer N start N workers exercising interval timers
--itimer-ops N stop after N interval timer bogo operations
--kcmp N start N workers exercising kcmp
--kcmp-ops N stop after N kcmp bogo operations
--key N start N workers exercising key operations
--key-ops N stop after N key bogo operations
--kill N start N workers killing with SIGUSR1
--kill-ops N stop after N kill bogo operations
--lease N start N workers holding and breaking a lease
--lease-ops N stop after N lease bogo operations
--lease-breakers N number of lease breaking workers to start
--link N start N workers creating hard links
--link-ops N stop after N link bogo operations
--lockbus N start N workers locking a memory increment
--lockbus-ops N stop after N lockbus bogo operations
--lockf N start N workers locking a single file via lockf
--lockf-ops N stop after N lockf bogo operations
--lockf-nonblock don't block if lock cannot be obtained, re-try
--longjmp N start N workers exercising setjmp/longjmp
--longjmp-ops N stop after N longjmp bogo operations
--lsearch N start N workers that exercise a linear search
--lsearch-ops N stop after N linear search bogo operations
--lsearch-size N number of 32 bit integers to lsearch
--malloc N start N workers exercising malloc/realloc/free
--malloc-bytes N allocate up to N bytes per allocation
--malloc-max N keep up to N allocations at a time
--malloc-ops N stop after N malloc bogo operations
--malloc-thresh N threshold where malloc uses mmap instead of sbrk
--matrix N start N workers exercising matrix operations
--matrix-ops N stop after N maxtrix bogo operations
--matrix-method m specify matrix stress method m, default is all
--matrix-size N specify the size of the N x N matrix
--membarrier N start N workers performing membarrier system calls
--membarrier-ops N stop after N membarrier bogo operations
--memcpy N start N workers performing memory copies
--memcpy-ops N stop after N memcpy bogo operations
--memfd N start N workers allocating memory with memfd_create
--memfd-ops N stop after N memfd bogo operations
--mincore N start N workers exercising mincore
--mincore-ops N stop after N mincore bogo operations
--mincore-random randomly select pages rather than linear scan
--mknod N start N workers that exercise mknod
--mknod-ops N stop after N mknod bogo operations
--mlock N start N workers exercising mlock/munlock
--mlock-ops N stop after N mlock bogo operations
--mmap N start N workers stressing mmap and munmap
--mmap-ops N stop after N mmap bogo operations
--mmap-async using asynchronous msyncs for file based mmap
--mmap-bytes N mmap and munmap N bytes for each stress iteration
--mmap-file mmap onto a file using synchronous msyncs
--mmap-mprotect enable mmap mprotect stressing
--mmapfork N start N workers stressing many forked mmaps/munmaps
--mmapfork-ops N stop after N mmapfork bogo operations
--mmapmany N start N workers stressing many mmaps and munmaps
--mmapmany-ops N stop after N mmapmany bogo operations
--mremap N start N workers stressing mremap
--mremap-ops N stop after N mremap bogo operations
--mremap-bytes N mremap N bytes maximum for each stress iteration
--msg N start N workers stressing System V messages
--msg-ops N stop msg workers after N bogo messages
--mq N start N workers passing messages using POSIX messages
--mq-ops N stop mq workers after N bogo messages
--mq-size N specify the size of the POSIX message queue
--nice N start N workers that randomly re-adjust nice levels
--nice-ops N stop after N nice bogo operations
--null N start N workers writing to /dev/null
--null-ops N stop after N /dev/null bogo write operations
--numa N start N workers stressing NUMA interfaces
--numa-ops N stop after N NUMA bogo operations
-o, --open N start N workers exercising open/close
--open-ops N stop after N open/close bogo operations
--personality N start N workers that change their personality
--personality-ops N stop after N bogo personality calls
-p N, --pipe N start N workers exercising pipe I/O
--pipe-ops N stop after N pipe I/O bogo operations
--pipe-data-size N set pipe size of each pipe write to N bytes
--pipe-size N set pipe size to N bytes
-P N, --poll N start N workers exercising zero timeout polling
--poll-ops N stop after N poll bogo operations
--procfs N start N workers reading portions of /proc
--procfs-ops N stop procfs workers after N bogo read operations
--pthread N start N workers that create multiple threads
--pthread-ops N stop pthread workers after N bogo threads created
--pthread-max P create P threads at a time by each worker
--ptrace N start N workers that trace a child using ptrace
--ptrace-ops N stop ptrace workers after N system calls are traced
-Q, --qsort N start N workers qsorting 32 bit random integers
--qsort-ops N stop after N qsort bogo operations
--qsort-size N number of 32 bit integers to sort
--quota N start N workers exercising quotactl commands
--quota -ops N stop after N quotactl bogo operations
--rdrand N start N workers exercising rdrand (x86 only)
--rdrand-ops N stop after N rdrand bogo operations
--readahead N start N workers exercising file readahead
--readahead-bytes N size of file to readahead on (default is 1GB)
--readahead-ops N stop after N readahead bogo operations
-R, --rename N start N workers exercising file renames
--rename-ops N stop after N rename bogo operations
--rlimit N start N workers that exceed rlimits
--rlimit-ops N stop after N rlimit bogo operations
--seek N start N workers performing random seek r/w IO
--seek-ops N stop after N seek bogo operations
--seek-punch punch random holes in file to stress extents
--seek-size N length of file to do random I/O upon
--sem N start N workers doing semaphore operations
--sem-ops N stop after N semaphore bogo operations
--sem-procs N number of processes to start per worker
--sem-sysv N start N workers doing System V semaphore operations
--sem-sysv-ops N stop after N System V sem bogo operations
--sem-sysv-procs N number of processes to start per worker
--sendfile N start N workers exercising sendfile
--sendfile-ops N stop after N bogo sendfile operations
--sendfile-size N size of data to be sent with sendfile
--shm N start N workers that exercise POSIX shared memory
--shm-ops N stop after N POSIX shared memory bogo operations
--shm-bytes N allocate and free N bytes of POSIX shared memory per loop
--shm-segs N allocate N POSIX shared memory segments per iteration
--shm-sysv N start N workers that exercise System V shared memory
--shm-sysv-ops N stop after N shared memory bogo operations
--shm-sysv-bytes N allocate and free N bytes of shared memory per loop
--shm-sysv-segs N allocate N shared memory segments per iteration
--sigfd N start N workers reading signals via signalfd reads
--sigfd-ops N stop after N bogo signalfd reads
--sigfpe N start N workers generating floating point math faults
--sigfpe-ops N stop after N bogo floating point math faults
--sigpending N start N workers exercising sigpending
--sigpending-ops N stop after N sigpending bogo operations
--sigq N start N workers sending sigqueue signals
--sigq-ops N stop after N siqqueue bogo operations
--sigsegv N start N workers generating segmentation faults
--sigsegv-ops N stop after N bogo segmentation faults
--sigsuspend N start N workers exercising sigsuspend
--sigsuspend-ops N stop after N bogo sigsuspend wakes
-S N, --sock N start N workers exercising socket I/O
--sock-domain D specify socket domain, default is ipv4
--sock-nodelay disable Nagle algorithm, send data immediately
--sock-ops N stop after N socket bogo operations
--sock-opts option socket options [send|sendmsg|sendmmsg]
--sock-port P use socket ports P to P + number of workers - 1
--sockpair N start N workers exercising socket pair I/O activity
--sockpair-ops N stop after N socket pair bogo operations
--spawn start N workers spawning stress-ng using posix_spawn
--spawn-ops N stop after N spawn bogo operations
--splice N start N workers reading/writing using splice
--splice-ops N stop after N bogo splice operations
--splice-bytes N number of bytes to transfer per splice call
--stack N start N workers generating stack overflows
--stack-ops N stop after N bogo stack overflows
--stack-fill fill stack, touches all new pages
--str N start N workers exercising lib C string functions
--str-method func specify the string function to stress
--str-ops N stop after N bogo string operations
--stream N start N workers exercising memory bandwidth
--stream-ops N stop after N bogo stream operations
--stream-l3-size N specify the L3 cache size of the CPU
-s N, --switch N start N workers doing rapid context switches
--switch-ops N stop after N context switch bogo operations
--symlink N start N workers creating symbolic links
--symlink-ops N stop after N symbolic link bogo operations
--sysinfo N start N workers reading system information
--sysinfo-ops N stop after sysinfo bogo operations
--sysfs N start N workers reading files from /sys
--sysfs-ops N stop after sysfs bogo operations
--tee N start N workers exercising the tee system call
--tee-ops N stop after N tee bogo operations
-T N, --timer N start N workers producing timer events
--timer-ops N stop after N timer bogo events
--timer-freq F run timer(s) at F Hz, range 1 to 1000000000
--timer-rand enable random timer frequency
--timerfd N start N workers producing timerfd events
--timerfd-ops N stop after N timerfd bogo events
--timerfd-freq F run timer(s) at F Hz, range 1 to 1000000000
--timerfd-rand enable random timerfd frequency
--tsc N start N workers reading the TSC (x86 only)
--tsc-ops N stop after N TSC bogo operations
--tsearch N start N workers that exercise a tree search
--tsearch-ops N stop after N tree search bogo operations
--tsearch-size N number of 32 bit integers to tsearch
--udp N start N workers performing UDP send/receives
--udp-ops N stop after N udp bogo operations
--udp-domain D specify domain, default is ipv4
--udp-lite use the UDP-Lite (RFC 3828) protocol
--udp-port P use ports P to P + number of workers - 1
--udp-flood N start N workers that performs a UDP flood attack
--udp-flood-ops N stop after N udp flood bogo operations
--udp-flood-domain D specify domain, default is ipv4
--unshare N start N workers exercising resource unsharing
--unshare-ops N stop after N bogo unshare operations
-u N, --urandom N start N workers reading /dev/urandom
--urandom-ops N stop after N urandom bogo read operations
--userfaultfd N start N page faulting workers with userspace handling
--userfaultfd-ops N stop after N page faults have been handled
--utime N start N workers updating file timestamps
--utime-ops N stop after N utime bogo operations
--utime-fsync force utime meta data sync to the file system
--vecmath N start N workers performing vector math ops
--vecmath-ops N stop after N vector math bogo operations
--vfork N start N workers spinning on vfork() and exit()
--vfork-ops N stop after N vfork bogo operations
--vfork-max P create P processes per iteration, default is 1
-m N, --vm N start N workers spinning on anonymous mmap
--vm-bytes N allocate N bytes per vm worker (default 256MB)
--vm-hang N sleep N seconds before freeing memory
--vm-keep redirty memory instead of reallocating
--vm-ops N stop after N vm bogo operations
--vm-locked lock the pages of the mapped region into memory
--vm-method m specify stress vm method m, default is all
--vm-populate populate (prefault) page tables for a mapping
--vm-rw N start N vm read/write process_vm* copy workers
--vm-rw-bytes N transfer N bytes of memory per bogo operation
--vm-rw-ops N stop after N vm process_vm* copy bogo operations
--vm-splice N start N workers reading/writing using vmsplice
--vm-splice-ops N stop after N bogo splice operations
--vm-splice-bytes N number of bytes to transfer per vmsplice call
--wcs N start N workers on lib C wide character string functions
--wcs-method func specify the wide character string function to stress
--wcs-ops N stop after N bogo wide character string operations
--wait N start N workers waiting on child being stop/resumed
--wait-ops N stop after N bogo wait operations
-y N, --yield N start N workers doing sched_yield() calls
--yield-ops N stop after N bogo yield operations
--xattr N start N workers stressing file extended attributes
--xattr-ops N stop after N bogo xattr operations
--zero N start N workers reading /dev/zero
--zero-ops N stop after N /dev/zero bogo read operations
--zombie N start N workers that rapidly create and reap zombies
--zombie-ops N stop after N bogo zombie fork operations
--zombie-max N set upper limit of N zombies per worker
Example: stress-ng --cpu 8 --io 4 --vm 2 --vm-bytes 128M --fork 4 --timeout 10s
Note: Sizes can be suffixed with B,K,M,G and times with s,m,h,d,y
Removal
Unmerge
root #emerge --ask --depclean --verbose app-benchmarks/stress-ngSee also
- stress
- badblocks — a small program for stress testing block devices.
External resources
- http://kernel.ubuntu.com/~cking/tarballs/stress-ng/ - Tarball directory.
- http://smackerelofopinion.blogspot.com/2014/06/stress-ng-updated-system-stress-test.html - A blog discussing stress-ng updates.