diff options
Diffstat (limited to 'yocto-poky/meta/recipes-rt')
13 files changed, 743 insertions, 0 deletions
diff --git a/yocto-poky/meta/recipes-rt/README b/yocto-poky/meta/recipes-rt/README new file mode 100644 index 000000000..7d7558de4 --- /dev/null +++ b/yocto-poky/meta/recipes-rt/README @@ -0,0 +1,13 @@ +The recipes-rt recipes provide package and image recipes for using and testing +the PREEMPT_RT kernel. The core-image-rt*.bb images are minimal images with +a couple extra packages, including rt-tests. In order to build the image with +the linux-yocto-rt kernel, be sure to include the following line in your +local.conf, bblayers.conf, or your $MACHINE.conf. + +PREFERRED_PROVIDER_virtual/kernel = "linux-yocto-rt" + +If you are creating a new BSP which should use linux-yocto-rt by default, +use the line above in the $MACHINE.conf in your BSP layer, and specify the +following in a linux-yocto-rt bbappend recipe: + +COMPATIBLE_MACHINE_$MACHINE = $MACHINE diff --git a/yocto-poky/meta/recipes-rt/images/core-image-rt-sdk.bb b/yocto-poky/meta/recipes-rt/images/core-image-rt-sdk.bb new file mode 100644 index 000000000..db7d58183 --- /dev/null +++ b/yocto-poky/meta/recipes-rt/images/core-image-rt-sdk.bb @@ -0,0 +1,12 @@ +require recipes-core/images/core-image-minimal.bb + +DESCRIPTION = "Small image capable of booting a device with a test suite and \ +tools for real-time use. It includes the full meta-toolchain, development \ +headers and libraries to form a standalone SDK." +DEPENDS = "linux-yocto-rt" + +IMAGE_FEATURES += "dev-pkgs tools-sdk tools-debug eclipse-debug tools-profile tools-testapps debug-tweaks" + +IMAGE_INSTALL += "rt-tests hwlatdetect kernel-dev" + +LICENSE = "MIT" diff --git a/yocto-poky/meta/recipes-rt/images/core-image-rt.bb b/yocto-poky/meta/recipes-rt/images/core-image-rt.bb new file mode 100644 index 000000000..cab6f8b74 --- /dev/null +++ b/yocto-poky/meta/recipes-rt/images/core-image-rt.bb @@ -0,0 +1,9 @@ +require recipes-core/images/core-image-minimal.bb + +DESCRIPTION = "A small image just capable of allowing a device to boot plus a \ +real-time test suite and tools appropriate for real-time use." +DEPENDS = "linux-yocto-rt" + +IMAGE_INSTALL += "rt-tests hwlatdetect" + +LICENSE = "MIT" diff --git a/yocto-poky/meta/recipes-rt/rt-tests/files/0001-rt-tests-Allow-for-user-specified-PYLIB.patch b/yocto-poky/meta/recipes-rt/rt-tests/files/0001-rt-tests-Allow-for-user-specified-PYLIB.patch new file mode 100644 index 000000000..8b493eb1f --- /dev/null +++ b/yocto-poky/meta/recipes-rt/rt-tests/files/0001-rt-tests-Allow-for-user-specified-PYLIB.patch @@ -0,0 +1,35 @@ +From 66765522b634952346f1a3ab7d00c7222a1f9361 Mon Sep 17 00:00:00 2001 +Message-Id: <66765522b634952346f1a3ab7d00c7222a1f9361.1347419597.git.dvhart@linux.intel.com> +From: Darren Hart <dvhart@linux.intel.com> +Date: Tue, 11 Sep 2012 15:19:30 -0700 +Subject: [PATCH 1/2] rt-tests: Allow for user-specified PYLIB + +Upstream-Status: Submitted + +Allow users (build systems) to specify PYLIB. This allows for a +cross-build-system to specify the target PYLIB rather than the host +PYLIB. + +Signed-off-by: Darren Hart <dvhart@linux.intel.com> +CC: Clark Williams <williams@redhat.com> +CC: John Kacur <jkacur@redhat.com> +--- + Makefile | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +diff --git a/Makefile b/Makefile +index 3a82407..61e2f9f 100644 +--- a/Makefile ++++ b/Makefile +@@ -23,7 +23,7 @@ endif + CFLAGS ?= -D_GNU_SOURCE -Wall -Wno-nonnull -Isrc/include + LDFLAGS ?= + +-PYLIB := $(shell python -c 'import distutils.sysconfig; print distutils.sysconfig.get_python_lib()') ++PYLIB ?= $(shell python -c 'import distutils.sysconfig; print distutils.sysconfig.get_python_lib()') + + ifndef DEBUG + CFLAGS += -O2 +-- +1.7.11.4 + diff --git a/yocto-poky/meta/recipes-rt/rt-tests/files/0002-rt-tests-Break-out-install_hwlatdetect.patch b/yocto-poky/meta/recipes-rt/rt-tests/files/0002-rt-tests-Break-out-install_hwlatdetect.patch new file mode 100644 index 000000000..bc6136f1d --- /dev/null +++ b/yocto-poky/meta/recipes-rt/rt-tests/files/0002-rt-tests-Break-out-install_hwlatdetect.patch @@ -0,0 +1,68 @@ +From af93e580d005a2bba6ed36528003af4cf631adb8 Mon Sep 17 00:00:00 2001 +Message-Id: <af93e580d005a2bba6ed36528003af4cf631adb8.1347419597.git.dvhart@linux.intel.com> +In-Reply-To: <66765522b634952346f1a3ab7d00c7222a1f9361.1347419597.git.dvhart@linux.intel.com> +References: <66765522b634952346f1a3ab7d00c7222a1f9361.1347419597.git.dvhart@linux.intel.com> +From: Darren Hart <dvhart@linux.intel.com> +Date: Tue, 11 Sep 2012 14:51:10 -0700 +Subject: [PATCH 2/2] rt-tests: Break out install_hwlatdetect + +Upstream-Status: Submitted + +Allow hwlatdetect to be installed independently of the rest of the +tests. This is convenient for build systems that package it separately +due to the python dependency. + +Signed-off-by: Darren Hart <dvhart@linux.intel.com> +CC: Clark Williams <williams@redhat.com> +CC: John Kacur <jkacur@redhat.com> +--- + Makefile | 18 +++++++++++------- + 1 file changed, 11 insertions(+), 7 deletions(-) + +diff --git a/Makefile b/Makefile +index 61e2f9f..636e63b 100644 +--- a/Makefile ++++ b/Makefile +@@ -119,21 +119,15 @@ changelog: + git log >ChangeLog + + .PHONY: install +-install: all ++install: all install_hwlatdetect + mkdir -p "$(DESTDIR)$(bindir)" "$(DESTDIR)$(mandir)/man4" + mkdir -p "$(DESTDIR)$(srcdir)" "$(DESTDIR)$(mandir)/man8" + cp $(TARGETS) "$(DESTDIR)$(bindir)" +- if test -n "$(PYLIB)" ; then \ +- install -D -m 755 src/hwlatdetect/hwlatdetect.py $(DESTDIR)$(PYLIB)/hwlatdetect.py ; \ +- rm -f "$(DESTDIR)$(bindir)/hwlatdetect" ; \ +- ln -s $(PYLIB)/hwlatdetect.py "$(DESTDIR)$(bindir)/hwlatdetect" ; \ +- fi + install -D -m 644 src/backfire/backfire.c "$(DESTDIR)$(srcdir)/backfire/backfire.c" + install -m 644 src/backfire/Makefile "$(DESTDIR)$(srcdir)/backfire/Makefile" + gzip src/backfire/backfire.4 -c >"$(DESTDIR)$(mandir)/man4/backfire.4.gz" + gzip src/cyclictest/cyclictest.8 -c >"$(DESTDIR)$(mandir)/man8/cyclictest.8.gz" + gzip src/pi_tests/pi_stress.8 -c >"$(DESTDIR)$(mandir)/man8/pi_stress.8.gz" +- gzip src/hwlatdetect/hwlatdetect.8 -c >"$(DESTDIR)$(mandir)/man8/hwlatdetect.8.gz" + gzip src/ptsematest/ptsematest.8 -c >"$(DESTDIR)$(mandir)/man8/ptsematest.8.gz" + gzip src/sigwaittest/sigwaittest.8 -c >"$(DESTDIR)$(mandir)/man8/sigwaittest.8.gz" + gzip src/svsematest/svsematest.8 -c >"$(DESTDIR)$(mandir)/man8/svsematest.8.gz" +@@ -141,6 +135,16 @@ install: all + gzip src/backfire/sendme.8 -c >"$(DESTDIR)$(mandir)/man8/sendme.8.gz" + gzip src/hackbench/hackbench.8 -c >"$(DESTDIR)$(mandir)/man8/hackbench.8.gz" + ++.PHONY: install_hwlatdetect ++install_hwlatdetect: hwlatdetect ++ if test -n "$(PYLIB)" ; then \ ++ mkdir -p "$(DESTDIR)$(bindir)" "$(DESTDIR)$(mandir)/man8" ; \ ++ install -D -m 755 src/hwlatdetect/hwlatdetect.py $(DESTDIR)$(PYLIB)/hwlatdetect.py ; \ ++ rm -f "$(DESTDIR)$(bindir)/hwlatdetect" ; \ ++ ln -s $(PYLIB)/hwlatdetect.py "$(DESTDIR)$(bindir)/hwlatdetect" ; \ ++ gzip src/hwlatdetect/hwlatdetect.8 -c >"$(DESTDIR)$(mandir)/man8/hwlatdetect.8.gz" ; \ ++ fi ++ + .PHONY: release + release: clean changelog + mkdir -p releases +-- +1.7.11.4 + diff --git a/yocto-poky/meta/recipes-rt/rt-tests/files/Makefile-fix-gzip-command.patch b/yocto-poky/meta/recipes-rt/rt-tests/files/Makefile-fix-gzip-command.patch new file mode 100644 index 000000000..0a35ddc74 --- /dev/null +++ b/yocto-poky/meta/recipes-rt/rt-tests/files/Makefile-fix-gzip-command.patch @@ -0,0 +1,30 @@ +From 07b5ed42d7041ccc084889eaa96817aa097bf461 Mon Sep 17 00:00:00 2001 +From: Robert Yang <liezhi.yang@windriver.com> +Date: Tue, 3 Feb 2015 03:10:25 +0000 +Subject: [PATCH] Makefile: fix gzip command + +The "-c" doesn't work in command "gzip file -c", need use "gzip -c file" + +Upstream-Status: Pending + +Signed-off-by: Robert Yang <liezhi.yang@windriver.com> +--- + Makefile | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +diff --git a/Makefile b/Makefile +index 219a591..c7d147a 100644 +--- a/Makefile ++++ b/Makefile +@@ -144,7 +144,7 @@ install_hwlatdetect: hwlatdetect + install -D -m 755 src/hwlatdetect/hwlatdetect.py $(DESTDIR)$(PYLIB)/hwlatdetect.py ; \ + rm -f "$(DESTDIR)$(bindir)/hwlatdetect" ; \ + ln -s $(PYLIB)/hwlatdetect.py "$(DESTDIR)$(bindir)/hwlatdetect" ; \ +- gzip src/hwlatdetect/hwlatdetect.8 -c >"$(DESTDIR)$(mandir)/man8/hwlatdetect.8.gz" ; \ ++ gzip -c src/hwlatdetect/hwlatdetect.8 >"$(DESTDIR)$(mandir)/man8/hwlatdetect.8.gz" ; \ + fi + + .PHONY: release +-- +2.0.1 + diff --git a/yocto-poky/meta/recipes-rt/rt-tests/files/fix-re-install-failure.patch b/yocto-poky/meta/recipes-rt/rt-tests/files/fix-re-install-failure.patch new file mode 100644 index 000000000..e38ec92c0 --- /dev/null +++ b/yocto-poky/meta/recipes-rt/rt-tests/files/fix-re-install-failure.patch @@ -0,0 +1,48 @@ +Currently gzip on host is used. If host gzip is provided by pigz, it fails to +redo install that pigz can't handle the option after file name. When run: + +gzip src/backfire/backfire.4 -c > OUTPUT_FILE + +File src/backfire/backfire.4 is zipped into backfire.4.gz but the OUTPUT_FILE +is empty. When rerun do_install, it shows warning: + +| gzip: src/backfire/backfire.4 does not exist -- skipping + +and empty manual gzip files are created: + +$ file image/usr/share/man/man4/backfire.4.gz +image/usr/share/man/man4/backfire.4.gz: empty + +Fix it by putting option '-c' before the file name. + +Upstream-Status: Pending + +Signed-off-by: Kai Kang <kai.kang@windriver.com> +--- +--- git/Makefile.orig 2014-11-14 15:47:26.406638419 +0800 ++++ git/Makefile 2014-11-14 15:46:53.890637533 +0800 +@@ -127,15 +127,15 @@ + cp $(TARGETS) "$(DESTDIR)$(bindir)" + install -D -m 644 src/backfire/backfire.c "$(DESTDIR)$(srcdir)/backfire/backfire.c" + install -m 644 src/backfire/Makefile "$(DESTDIR)$(srcdir)/backfire/Makefile" +- gzip src/backfire/backfire.4 -c >"$(DESTDIR)$(mandir)/man4/backfire.4.gz" +- gzip src/cyclictest/cyclictest.8 -c >"$(DESTDIR)$(mandir)/man8/cyclictest.8.gz" +- gzip src/pi_tests/pi_stress.8 -c >"$(DESTDIR)$(mandir)/man8/pi_stress.8.gz" +- gzip src/ptsematest/ptsematest.8 -c >"$(DESTDIR)$(mandir)/man8/ptsematest.8.gz" +- gzip src/sigwaittest/sigwaittest.8 -c >"$(DESTDIR)$(mandir)/man8/sigwaittest.8.gz" +- gzip src/svsematest/svsematest.8 -c >"$(DESTDIR)$(mandir)/man8/svsematest.8.gz" +- gzip src/pmqtest/pmqtest.8 -c >"$(DESTDIR)$(mandir)/man8/pmqtest.8.gz" +- gzip src/backfire/sendme.8 -c >"$(DESTDIR)$(mandir)/man8/sendme.8.gz" +- gzip src/hackbench/hackbench.8 -c >"$(DESTDIR)$(mandir)/man8/hackbench.8.gz" ++ gzip -c src/backfire/backfire.4 >"$(DESTDIR)$(mandir)/man4/backfire.4.gz" ++ gzip -c src/cyclictest/cyclictest.8 >"$(DESTDIR)$(mandir)/man8/cyclictest.8.gz" ++ gzip -c src/pi_tests/pi_stress.8 >"$(DESTDIR)$(mandir)/man8/pi_stress.8.gz" ++ gzip -c src/ptsematest/ptsematest.8 >"$(DESTDIR)$(mandir)/man8/ptsematest.8.gz" ++ gzip -c src/sigwaittest/sigwaittest.8 >"$(DESTDIR)$(mandir)/man8/sigwaittest.8.gz" ++ gzip -c src/svsematest/svsematest.8 >"$(DESTDIR)$(mandir)/man8/svsematest.8.gz" ++ gzip -c src/pmqtest/pmqtest.8 >"$(DESTDIR)$(mandir)/man8/pmqtest.8.gz" ++ gzip -c src/backfire/sendme.8 >"$(DESTDIR)$(mandir)/man8/sendme.8.gz" ++ gzip -c src/hackbench/hackbench.8 >"$(DESTDIR)$(mandir)/man8/hackbench.8.gz" + + .PHONY: install_hwlatdetect + install_hwlatdetect: hwlatdetect diff --git a/yocto-poky/meta/recipes-rt/rt-tests/files/hackbench-fix-error-check.patch b/yocto-poky/meta/recipes-rt/rt-tests/files/hackbench-fix-error-check.patch new file mode 100644 index 000000000..d17fdff45 --- /dev/null +++ b/yocto-poky/meta/recipes-rt/rt-tests/files/hackbench-fix-error-check.patch @@ -0,0 +1,41 @@ +childinfo_t is a union that contains both signed (error) and unsigned +(threadid) members. Thus a large threadid could appear as a negative error +value, which will cause unexpected failures. + +childinfo_t should be changed to a struct, but it could potentially affect the +performance. So we keep it as a union but only check error against -1. There is +still a chance of false alarm but it's small. + +Upstream-Status: Pending + +Signed-off-by: Song.Li <Song.Li@windriver.com> +Signed-off-by: Jesse Zhang <sen.zhang@windriver.com> +--- + src/hackbench/hackbench.c | 4 ++-- + 1 file changed, 2 insertions(+), 2 deletions(-) + +diff --git a/src/hackbench/hackbench.c b/src/hackbench/hackbench.c +index 8baeb23..dc0de8f 100644 +--- a/src/hackbench/hackbench.c ++++ b/src/hackbench/hackbench.c +@@ -317,7 +317,7 @@ static unsigned int group(childinfo_t *child, + ctx->wakefd = wakefd; + + child[tab_offset+i] = create_worker(ctx, (void *)(void *)receiver); +- if( child[tab_offset+i].error < 0 ) { ++ if( child[tab_offset+i].error == -1 ) { + return (i > 0 ? i-1 : 0); + } + snd_ctx->out_fds[i] = fds[1]; +@@ -332,7 +332,7 @@ static unsigned int group(childinfo_t *child, + snd_ctx->num_fds = num_fds; + + child[tab_offset+num_fds+i] = create_worker(snd_ctx, (void *)(void *)sender); +- if( child[tab_offset+num_fds+i].error < 0 ) { ++ if( child[tab_offset+num_fds+i].error == -1 ) { + return (num_fds+i)-1; + } + } +-- +1.7.9.5 + diff --git a/yocto-poky/meta/recipes-rt/rt-tests/files/rt_bmark.py b/yocto-poky/meta/recipes-rt/rt-tests/files/rt_bmark.py new file mode 100755 index 000000000..e2280e43e --- /dev/null +++ b/yocto-poky/meta/recipes-rt/rt-tests/files/rt_bmark.py @@ -0,0 +1,412 @@ +#!/usr/bin/python +# -*- coding: utf-8 -*- + +# SPDX-License-Identifier: BSD-3-Clause +# Copyright (C) 2015 Enea Software AB +# Author: Thomas Lundström <thomas.lundstrom@enea.com> + +# The script measures interrupt latency together with different types of +# system load. This is done using the programs cyclictest and stress. +# +# The main output is: +# +# Best case (min) latency +# This has very limited value, but is presented since it can be done +# easily +# +# Average latency +# This value is of interrest for throughput oriented systems. Limited +# value for a real-time system. Also presented because it is easy to do. +# +# Worst case (max) latency +# This is the interesting number for a real-time system. The number +# presented is (of cource) the largest number observed. The challenge +# is to know how the observed worst case relates to the actual worst case. +# +# To get an indication of the confidence, the following method is used: +# 1) Instead of one long run, the measurement is made as a set of shorter +# runs. The number of runs must be a power of 2 for reasons that will +# shorlty be obvious +# +# 2) First, a list of the max values are created. +# +# 3) The smallest value in that list is recorded. +# +# 4) Then a new list is create by taking the max value of each pair of +# values in the original list. In this list the smallest value is +# recorded. +# +# 5) Step 3 is repeated until there is only one value in the list. See +# example below: +# +# Samples: +# | 44 | | | | | +# | 77 | 77 | | | | +# | 118 | | | | | +# | 119 | 119 | 119 | | | +# | 138 | | | | | +# | 57 | 138 | | | | +# | 175 | | | | | +# | 130 | 175 | 175 | 175 | | +# | 54 | | | | | +# | 150 | 150 | | | | +# | 47 | | | | | +# | 59 | 59 | 150 | | | +# | 199 | | | | | +# | 115 | 199 | | | | +# | 177 | | | | | +# | 129 | 177 | 199 | 199 | 199 | +# +# Smallest value: +# | 44 | 59 | 119 | 175 | 199 | +# +# 6) The generated list of smallest values is analyzed. In this case, it +# can be observed that the values are increasing significantly through +# the entire list, which leads to the conclusion that the number of +# samples is too small. +# If instead the list had been (167, 191, 196, 199, 199), there had +# been a very small, or no, increase at the end of the list. We might +# then suspect that the number of samples is probably large enough. +# There is however no guarantee for that. +# +# Steps 1-2 are done in run_cyclictest_suite +# Steps 3-5 are done in gen_minmax_list. +# Step 6 needs to be done manually since there is (yet) no well defined +# FAIL criterion and a theoretically solid PASS criterion may never be +# available. + +import multiprocessing +import os +import re +import signal +import subprocess +import time +import traceback + +# See comment on the function set_hung_tmo +has_hung_task_detection = True + +#------------------------------------------------------------------------------- + +class TestFail(Exception): + def __init__(self, msg): + self.msg = msg + + def __str__(self): + return "Test failure: (" + self.msg + ")" + +#------------------------------------------------------------------------------- + +def tc_name(sub_name): + return "rt_bmark.intlat." + sub_name + +#------------------------------------------------------------------------------- +# log() does the same job as print except that a '#' is added at the beginning +# of each line. This causes TEFEL to ignore it + +def log(*msg): + tmp = "".join(map(str, msg)) # 'map(str, ...' allows numbers + for line in tmp.split("\n"): + print "#", line + +#------------------------------------------------------------------------------- +# Like log(), but with a timestamp added + +def log_ts(*msg): + ts = time.localtime() + stamp = "%2d:%02d:%02d: " % (ts.tm_hour, ts.tm_min, ts.tm_sec) + log(stamp, *msg) + +#------------------------------------------------------------------------------- + +def log_test_header(seq_no, nr_of_tests, name): + log("=" * 78) + log() + log(" Test case (%d/%d): %s" % (seq_no, nr_of_tests, tc_name(name))) + log() + log("." * 78) + log() + +#------------------------------------------------------------------------------- + +def start_stress(*args): + stress_cmd = [ "stress" ] + added_stress_types = [] + req_stress_types = set(args) + cpu_cnt = str(multiprocessing.cpu_count()) + + # The function cond_add_stress appends the options to the stress + # command if the stress type is in the set of requested stress types + + def cond_add_stress(stress_type, options): + if stress_type in req_stress_types: + req_stress_types.remove(stress_type) + added_stress_types.append(stress_type) + stress_cmd.extend(options) + + #---------- + + cond_add_stress("io", ["-i", cpu_cnt]) + cond_add_stress("cpu", ["-c", cpu_cnt]) + cond_add_stress("hdd", ["-d", cpu_cnt, "--hdd-bytes", "20M"]) + cond_add_stress("vm", ["-m", cpu_cnt, "--vm-bytes", "10M"]) + + unknown = ", ".join(req_stress_types) + if unknown != "": + raise TestFail("Unknown stress type(s): %s" % unknown) + + if not added_stress_types: + log("No stress requested") + return None + + added = "+".join(added_stress_types) + stress_cmd_str = " ".join(stress_cmd) + + log("Starting stress(", added, ")") + log(" Command: '", stress_cmd_str, "'") + log() + + # preexec_fn=os.setsid causes stress to be executed in a separate + # session, => it gets a new process group (incl. children). It + # can then be terminated using os.killpg in end_stress without + # terminating this script. + + p = subprocess.Popen(stress_cmd, preexec_fn=os.setsid) + + return p + +#------------------------------------------------------------------------------- + +def end_stress(p): + if p is None: + # The value None indicates that no stress scenario was started + return + + if p.poll() is not None: + raise TestFail("stress prematurely terminated.") + + os.killpg(os.getpgid(p.pid), signal.SIGTERM) + log("Terminated stress") + +#------------------------------------------------------------------------------- + +def us2hms_str(us): + s = (us+500000) // 1000000 # Round microseconds to s + m = s//60 + s -= 60*m; + h = m//60 + m -= 60*h + + return "%d:%02d:%02d" % (h, m, s) + +#------------------------------------------------------------------------------- +# Sometime the hung task supervision is triggered during execution of +# cyclictest (cyclictest starves stress). To avoid that, the supervision +# is temporarily disabled + +def set_hung_tmo(new_tmo): + global has_hung_task_detection + + tmo_file = "/proc/sys/kernel/hung_task_timeout_secs" + + if not has_hung_task_detection: + return + + if not os.access(tmo_file, os.W_OK): + log("Hung task detection not supported") + log(" (File ", tmo_file, " not found)") + has_hung_task_detection = False + return + + orig_tmo = int(subprocess.check_output(["cat", tmo_file]).strip()) + if new_tmo != orig_tmo: + cmd = ( "echo " + str(new_tmo) + " > " + tmo_file ) + subprocess.check_output(cmd, shell=True) + log("Changed timeout for detection of hung tasks: ", + orig_tmo, " -> ", new_tmo) + + return orig_tmo + +#------------------------------------------------------------------------------- + +def gen_minmax_list(max_list): + res = [min(max_list)] + + while True: + tmp = max_list + max_list = [] + while tmp: + max_list.append(max(tmp.pop(0), tmp.pop(0))) + + res.append(min(max_list)) + + if len(max_list) < 2: + return res + +#------------------------------------------------------------------------------- +# Parameters for cyclictest: +# +# On the -S option (from cyclictest.c): +# -S implies options -a -t -n and same priority of all threads +# -a: One thread per core +# -n: use clock_nanosleep instead of posix interval timers +# -t: (without argument) Set number of threads to the number +# of cpus + +interval_core_0 = 100 # Timer interval on core 0 [us] +interval_delta = 20 # Interval increment for each core [us] +loop_count = 30000 # Number of loops (on core 0). + +cmd = ("cyclictest", + "-S", # Standard SMP testing. See below + "-p", "99", # RT priority 99 + "-q", # Quiet mode, i.e. print only a summary + "-i", str(interval_core_0), + "-d", str(interval_delta), + "-l", str(loop_count) + ) +rex = re.compile("C:\s*(\d+).*Min:\s*(\d+).*Avg:\s*(\d+).*Max:\s*(\d+)") + +def run_cyclictest_once(): + res = subprocess.check_output(cmd) + + # minlist and maxlist are lists with the extremes for each core + # avg_cnt is the sum of cycles for all cores + # avg_sum is the sum of (cycle count*average) for each core + # Since cyclictest runs different number of cycles on + # different cores, avg_sum/avg_cnt gives a more accurate + # value of the overall average than just taking the average + # of each core's averages + + minlist = [] + maxlist = [] + avg_sum = 0 + avg_cnt = 0 + + for line in res.split("\n"): + m = rex.search(line) + if m is not None: + minlist.append(int(m.group(2))) + maxlist.append(int(m.group(4))) + n = int(m.group(1)) + avg_sum += n * int(m.group(3)) + avg_cnt += n + + return min(minlist), [avg_sum, avg_cnt], max(maxlist) + +#------------------------------------------------------------------------------- +# A precondition for the tracking of min-max values is that +# the suite size os a power of 2. + +N = 5 +suite_size = 2**N + +est_exec_time_once = interval_core_0 * loop_count +est_exec_time_suite = suite_size * est_exec_time_once + +def run_cyclictest_suite(): + log("Starting cyclictest") + log(" Command : ", " ".join(cmd)) + log(" Number of cycles : ", loop_count*suite_size, + " (", suite_size, " sets of ", loop_count, " cycles)") + log(" Exec. time (est) : ", us2hms_str(est_exec_time_suite)) + log() + + orig_tmo = set_hung_tmo(0) # 0 => Disable + + # float('inf') emulates infinity. At least in the sense that it is + # guaranteed to be larger than any actual number. + ack_min = float('inf') + ack_avg = [0, 0] + + log() + log_ts("Start of execution") + t = time.time() + max_list = [] + + for i in xrange(0, suite_size): + tmp_min, tmp_avg, tmp_max = run_cyclictest_once() + + msg = "%2d/%2d:" % (i+1, suite_size) + msg += " min: %4d" % tmp_min + msg += " avg: %5.1f" % (float(tmp_avg[0])/tmp_avg[1]) + msg += " max: %4d" % tmp_max + log_ts(msg) + + # Track minimum value + if tmp_min < ack_min: + ack_min = tmp_min + + # Track smallest max value + max_list.append(tmp_max) + + ack_avg[0] += tmp_avg[0] + ack_avg[1] += tmp_avg[1] + + t = time.time()-t + log_ts("Cyclictest completed. Actual execution time:", + us2hms_str(t*1000000)) + log() + set_hung_tmo(orig_tmo) + + return ack_min, float(ack_avg[0])/ack_avg[1], gen_minmax_list(max_list) + +#------------------------------------------------------------------------------- + +class cyclictest_runner: + def run_test(self, seq_no, nr_of_tests, name, stressparams): + + try: + log_test_header(seq_no, nr_of_tests, name) + + p = start_stress(*stressparams) + + bm_min, bm_avg, bm_max_list = run_cyclictest_suite() + + end_stress(p) + + bm_max = bm_max_list[-1] + + log() + log("Min: %d us" % bm_min) + log("Avg: %.1f us" % bm_avg) + log("Max: %d us" % bm_max) + log() + log("Max list: ", bm_max_list) + log() + log("PASS") + + print + print tc_name(name), "[Min/us,Avg/us,Max/us]:", + print "%d,%.1f,%d" % (bm_min,bm_avg, bm_max) + print "PASS:", tc_name(name) + print + + except Exception: + log() + log("Exception!") + log() + log("Traceback:", traceback.format_exc()) + log() + log("WD: ", os.getcwd()) + log() + log("FAIL") + print + print "FAIL:", tc_name(name) + print + +#------------------------------------------------------------------------------- + +runner = cyclictest_runner() + +tests = (("no_stress", []), + ("cpu", ["cpu"]), + ("hdd", ["hdd"]), + ("io", ["io"]), + ("vm", ["vm"]), + ("full", ["io", "cpu", "hdd", "vm"]), + ) + +nr_of_tests = len(tests) +for seq_no, params in enumerate(tests, start=1): + runner.run_test(seq_no, nr_of_tests, *params) diff --git a/yocto-poky/meta/recipes-rt/rt-tests/files/run-ptest b/yocto-poky/meta/recipes-rt/rt-tests/files/run-ptest new file mode 100644 index 000000000..8e6d3e358 --- /dev/null +++ b/yocto-poky/meta/recipes-rt/rt-tests/files/run-ptest @@ -0,0 +1,3 @@ +#!/bin/sh + +python ./rt_bmark.py diff --git a/yocto-poky/meta/recipes-rt/rt-tests/hwlatdetect_0.92.bb b/yocto-poky/meta/recipes-rt/rt-tests/hwlatdetect_0.92.bb new file mode 100644 index 000000000..8319eb987 --- /dev/null +++ b/yocto-poky/meta/recipes-rt/rt-tests/hwlatdetect_0.92.bb @@ -0,0 +1,23 @@ +SUMMARY = "Hardware latency detector" +DESCRIPTION = "Python utility for controlling the kernel hardware latency detection module (hwlat_detector.ko)." +HOMEPAGE = "http://git.kernel.org/?p=linux/kernel/git/clrkwllms/rt-tests.git" +SECTION = "tests" +LICENSE = "GPLv2" +LIC_FILES_CHKSUM = "file://COPYING;md5=751419260aa954499f7abaabaa882bbe" + +require rt-tests.inc + +EXTRA_OEMAKE += "PYLIB=${libdir}/python${PYTHON_BASEVERSION}/dist-packages" + +do_compile() { + oe_runmake hwlatdetect +} + +do_install() { + oe_runmake install_hwlatdetect DESTDIR=${D} SBINDIR=${sbindir} \ + MANDIR=${mandir} INCLUDEDIR=${includedir} +} + +FILES_${PN} += "${libdir}/python${PYTHON_BASEVERSION}/dist-packages/hwlatdetect.py" +RDEPENDS_${PN} = "python python-subprocess python-textutils" +RRECOMMENDS_${PN} = "kernel-module-hwlat-detector" diff --git a/yocto-poky/meta/recipes-rt/rt-tests/rt-tests.inc b/yocto-poky/meta/recipes-rt/rt-tests/rt-tests.inc new file mode 100644 index 000000000..871db136c --- /dev/null +++ b/yocto-poky/meta/recipes-rt/rt-tests/rt-tests.inc @@ -0,0 +1,19 @@ +# Version v0.92 +PV = "0.92" +SRCREV = "5f9f1e3fe327440a9d405f4af8feb16ff7a909eb" + +SRC_URI = "git://git.kernel.org/pub/scm/linux/kernel/git/clrkwllms/rt-tests.git \ + file://0001-rt-tests-Allow-for-user-specified-PYLIB.patch \ + file://0002-rt-tests-Break-out-install_hwlatdetect.patch \ + file://hackbench-fix-error-check.patch \ + file://Makefile-fix-gzip-command.patch \ + file://fix-re-install-failure.patch \ +" + +S = "${WORKDIR}/git" + +# need to append rt-tests' default CFLAGS to ours +CFLAGS += "-I${S}/src/include -D_GNU_SOURCE -Wall -Wno-nonnull" + +# calling 'uname -m' is broken on crossbuilds +EXTRA_OEMAKE = "NUMA=0" diff --git a/yocto-poky/meta/recipes-rt/rt-tests/rt-tests_0.92.bb b/yocto-poky/meta/recipes-rt/rt-tests/rt-tests_0.92.bb new file mode 100644 index 000000000..fbe2f669e --- /dev/null +++ b/yocto-poky/meta/recipes-rt/rt-tests/rt-tests_0.92.bb @@ -0,0 +1,30 @@ +SUMMARY = "Real-Time preemption testcases" +HOMEPAGE = "https://rt.wiki.kernel.org/index.php/Cyclictest" +SECTION = "tests" +DEPENDS = "linux-libc-headers virtual/libc" +LICENSE = "GPLv2 & GPLv2+" +LIC_FILES_CHKSUM = "file://COPYING;md5=751419260aa954499f7abaabaa882bbe \ + file://src/cyclictest/cyclictest.c;beginline=7;endline=9;md5=e768b8da44555fe63f65e5c497844cb5 \ + file://src/pi_tests/pi_stress.c;beginline=6;endline=19;md5=bd426a634a43ec612e9fbf125dfcc949" + +require rt-tests.inc +inherit ptest + +SRC_URI += "file://run-ptest \ + file://rt_bmark.py \ + " +# Do not install hwlatdetect +EXTRA_OEMAKE += "PYLIB=''" + +do_install() { + oe_runmake install DESTDIR=${D} SBINDIR=${sbindir} MANDIR=${mandir} \ + INCLUDEDIR=${includedir} +} + +do_install_ptest() { + cp ${WORKDIR}/rt_bmark.py ${D}${PTEST_PATH} +} + +RDEPENDS_${PN}-ptest += " stress python python-subprocess python-multiprocessing python-datetime python-re python-lang" + +FILES_${PN} += "${prefix}/src/backfire" |
