1*4882a593Smuzhiyun#!/bin/sh 2*4882a593Smuzhiyun# SPDX-License-Identifier: GPL-2.0+ 3*4882a593Smuzhiyun# 4*4882a593Smuzhiyun# Runs the C-language litmus tests matching the specified criteria. 5*4882a593Smuzhiyun# Generates the output for each .litmus file into a corresponding 6*4882a593Smuzhiyun# .litmus.out file, and does not judge the result. 7*4882a593Smuzhiyun# 8*4882a593Smuzhiyun# sh initlitmushist.sh 9*4882a593Smuzhiyun# 10*4882a593Smuzhiyun# Run from the Linux kernel tools/memory-model directory. 11*4882a593Smuzhiyun# See scripts/parseargs.sh for list of arguments. 12*4882a593Smuzhiyun# 13*4882a593Smuzhiyun# This script can consume significant wallclock time and CPU, especially as 14*4882a593Smuzhiyun# the value of --procs rises. On a four-core (eight hardware threads) 15*4882a593Smuzhiyun# 2.5GHz x86 with a one-minute per-run timeout: 16*4882a593Smuzhiyun# 17*4882a593Smuzhiyun# --procs wallclock CPU timeouts tests 18*4882a593Smuzhiyun# 1 0m11.241s 0m1.086s 0 19 19*4882a593Smuzhiyun# 2 1m12.598s 2m8.459s 2 393 20*4882a593Smuzhiyun# 3 1m30.007s 6m2.479s 4 2291 21*4882a593Smuzhiyun# 4 3m26.042s 18m5.139s 9 3217 22*4882a593Smuzhiyun# 5 4m26.661s 23m54.128s 13 3784 23*4882a593Smuzhiyun# 6 4m41.900s 26m4.721s 13 4352 24*4882a593Smuzhiyun# 7 5m51.463s 35m50.868s 13 4626 25*4882a593Smuzhiyun# 8 10m5.235s 68m43.672s 34 5117 26*4882a593Smuzhiyun# 9 15m57.80s 105m58.101s 69 5156 27*4882a593Smuzhiyun# 10 16m14.13s 103m35.009s 69 5165 28*4882a593Smuzhiyun# 20 27m48.55s 198m3.286s 156 5269 29*4882a593Smuzhiyun# 30*4882a593Smuzhiyun# Increasing the timeout on the 20-process run to five minutes increases 31*4882a593Smuzhiyun# the runtime to about 90 minutes with the CPU time rising to about 32*4882a593Smuzhiyun# 10 hours. On the other hand, it decreases the number of timeouts to 101. 33*4882a593Smuzhiyun# 34*4882a593Smuzhiyun# Note that there are historical tests for which herd7 will fail 35*4882a593Smuzhiyun# completely, for example, litmus/manual/atomic/C-unlock-wait-00.litmus 36*4882a593Smuzhiyun# contains a call to spin_unlock_wait(), which no longer exists in either 37*4882a593Smuzhiyun# the kernel or LKMM. 38*4882a593Smuzhiyun 39*4882a593Smuzhiyun. scripts/parseargs.sh 40*4882a593Smuzhiyun 41*4882a593SmuzhiyunT=/tmp/initlitmushist.sh.$$ 42*4882a593Smuzhiyuntrap 'rm -rf $T' 0 43*4882a593Smuzhiyunmkdir $T 44*4882a593Smuzhiyun 45*4882a593Smuzhiyunif test -d litmus 46*4882a593Smuzhiyunthen 47*4882a593Smuzhiyun : 48*4882a593Smuzhiyunelse 49*4882a593Smuzhiyun git clone https://github.com/paulmckrcu/litmus 50*4882a593Smuzhiyun ( cd litmus; git checkout origin/master ) 51*4882a593Smuzhiyunfi 52*4882a593Smuzhiyun 53*4882a593Smuzhiyun# Create any new directories that have appeared in the github litmus 54*4882a593Smuzhiyun# repo since the last run. 55*4882a593Smuzhiyunif test "$LKMM_DESTDIR" != "." 56*4882a593Smuzhiyunthen 57*4882a593Smuzhiyun find litmus -type d -print | 58*4882a593Smuzhiyun ( cd "$LKMM_DESTDIR"; sed -e 's/^/mkdir -p /' | sh ) 59*4882a593Smuzhiyunfi 60*4882a593Smuzhiyun 61*4882a593Smuzhiyun# Create a list of the C-language litmus tests with no more than the 62*4882a593Smuzhiyun# specified number of processes (per the --procs argument). 63*4882a593Smuzhiyunfind litmus -name '*.litmus' -exec grep -l -m 1 "^C " {} \; > $T/list-C 64*4882a593Smuzhiyunxargs < $T/list-C -r grep -L "^P${LKMM_PROCS}" > $T/list-C-short 65*4882a593Smuzhiyun 66*4882a593Smuzhiyunscripts/runlitmushist.sh < $T/list-C-short 67*4882a593Smuzhiyun 68*4882a593Smuzhiyunexit 0 69