rt-tests: version bump to 0.87
- Drop PR and INC_PR. - license remains the same with cyclictest.c checksum change (From OE-Core rev: 10c7a45af7085b0442adc495112fed3b9d0f1d3e) Signed-off-by: Maxin B. John <maxin.john@enea.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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From 8959451a8ec5dc83dcb2dba6701abe8bf419e12c Mon Sep 17 00:00:00 2001
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Message-Id: <8959451a8ec5dc83dcb2dba6701abe8bf419e12c.1358783585.git.Jim.Somerville@windriver.com>
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From: Jim Somerville <Jim.Somerville@windriver.com>
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Date: Mon, 21 Jan 2013 10:50:18 -0500
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Subject: [PATCH 1/1] cyclictest: finish removal of 1 second first loops
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Observation:
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Huge latencies reported close to 1 second when certain options
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are used in cyclictest.
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Problem:
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[ commit da4956cbcaf7945554f30e4d3a9be09b1431b19a
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use interval on first loop instead of 1 second ]
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removed the 1 second first timing loop out of the main path
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in cyclictest but left it in two other paths, namely the ones
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triggered by these two options:
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-r --relative use relative timer instead of absolute
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-s --system use sys_nanosleep and sys_setitimer
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This causes huge latencies of close to 1 second to be reported
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by cyclictest with certain uses of those two options.
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Fix:
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Extend the original commit to remove the 1 second hardcoded
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timer values from the RELTIME and ITIMER options. Use the
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the actual interval instead.
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Upstream-Status: Accepted
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[ https://git.kernel.org/cgit/linux/kernel/git/clrkwllms/rt-tests.git/commit/?h=work&id=1b92da30837e9552aba209cbdf938877f0fd3bbf ]
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Signed-off-by: Jim Somerville <Jim.Somerville@windriver.com>
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---
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src/cyclictest/cyclictest.c | 6 ++----
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1 files changed, 2 insertions(+), 4 deletions(-)
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diff --git a/src/cyclictest/cyclictest.c b/src/cyclictest/cyclictest.c
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index 11b6cea..8487409 100644
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--- a/src/cyclictest/cyclictest.c
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+++ b/src/cyclictest/cyclictest.c
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@@ -741,17 +741,15 @@ void *timerthread(void *param)
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if (par->timermode == TIMER_ABSTIME)
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tspec.it_value = next;
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else {
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- tspec.it_value.tv_nsec = 0;
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- tspec.it_value.tv_sec = 1;
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+ tspec.it_value = interval;
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}
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timer_settime(timer, par->timermode, &tspec, NULL);
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}
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if (par->mode == MODE_SYS_ITIMER) {
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- itimer.it_value.tv_sec = 1;
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- itimer.it_value.tv_usec = 0;
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itimer.it_interval.tv_sec = interval.tv_sec;
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itimer.it_interval.tv_usec = interval.tv_nsec / 1000;
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+ itimer.it_value = itimer.it_interval;
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setitimer (ITIMER_REAL, &itimer, NULL);
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}
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--
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1.7.4.1
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@ -1,18 +1,13 @@
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# Version v0.85
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SRCREV = "210e625227d21e0b589b8eaa36cd81f1cb981819"
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PR = "r0"
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# Version v0.87
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SRCREV = "b0413ae5ed802004fb0c4af74a1757381fd2b91f"
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SRC_URI = "git://git.kernel.org/pub/scm/linux/kernel/git/clrkwllms/rt-tests.git \
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file://0001-rt-tests-Allow-for-user-specified-PYLIB.patch \
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file://0002-rt-tests-Break-out-install_hwlatdetect.patch \
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file://added-missing-dependencies.patch \
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file://cyclictest-finish-removal-of-1-second-first-loops.patch \
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file://hackbench-fix-error-check.patch \
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"
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INC_PR = "r2"
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S = "${WORKDIR}/git"
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# need to append rt-tests' default CFLAGS to ours
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@ -4,13 +4,11 @@ SECTION = "tests"
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DEPENDS = "linux-libc-headers virtual/libc"
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LICENSE = "GPLv2 & GPLv2+"
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LIC_FILES_CHKSUM = "file://COPYING;md5=751419260aa954499f7abaabaa882bbe \
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file://src/cyclictest/cyclictest.c;beginline=7;endline=9;md5=ce162fe491d19d2ec67dff6dbc938d50 \
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file://src/cyclictest/cyclictest.c;beginline=7;endline=9;md5=e768b8da44555fe63f65e5c497844cb5 \
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file://src/pi_tests/pi_stress.c;beginline=6;endline=19;md5=bd426a634a43ec612e9fbf125dfcc949"
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require rt-tests.inc
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PR = "${INC_PR}.0"
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# Do not install hwlatdetect
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EXTRA_OEMAKE += "PYLIB=''"
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