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-rw-r--r--meta/recipes-rt/rt-tests/files/cyclictest-finish-removal-of-1-second-first-loops.patch61
1 files changed, 0 insertions, 61 deletions
diff --git a/meta/recipes-rt/rt-tests/files/cyclictest-finish-removal-of-1-second-first-loops.patch b/meta/recipes-rt/rt-tests/files/cyclictest-finish-removal-of-1-second-first-loops.patch
deleted file mode 100644
index a9cc0e34ef..0000000000
--- a/meta/recipes-rt/rt-tests/files/cyclictest-finish-removal-of-1-second-first-loops.patch
+++ /dev/null
@@ -1,61 +0,0 @@
1From 8959451a8ec5dc83dcb2dba6701abe8bf419e12c Mon Sep 17 00:00:00 2001
2Message-Id: <8959451a8ec5dc83dcb2dba6701abe8bf419e12c.1358783585.git.Jim.Somerville@windriver.com>
3From: Jim Somerville <Jim.Somerville@windriver.com>
4Date: Mon, 21 Jan 2013 10:50:18 -0500
5Subject: [PATCH 1/1] cyclictest: finish removal of 1 second first loops
6
7Observation:
8Huge latencies reported close to 1 second when certain options
9are used in cyclictest.
10
11Problem:
12[ commit da4956cbcaf7945554f30e4d3a9be09b1431b19a
13 use interval on first loop instead of 1 second ]
14removed the 1 second first timing loop out of the main path
15in cyclictest but left it in two other paths, namely the ones
16triggered by these two options:
17-r --relative use relative timer instead of absolute
18-s --system use sys_nanosleep and sys_setitimer
19This causes huge latencies of close to 1 second to be reported
20by cyclictest with certain uses of those two options.
21
22Fix:
23Extend the original commit to remove the 1 second hardcoded
24timer values from the RELTIME and ITIMER options. Use the
25the actual interval instead.
26
27Upstream-Status: Accepted
28[ https://git.kernel.org/cgit/linux/kernel/git/clrkwllms/rt-tests.git/commit/?h=work&id=1b92da30837e9552aba209cbdf938877f0fd3bbf ]
29
30Signed-off-by: Jim Somerville <Jim.Somerville@windriver.com>
31---
32 src/cyclictest/cyclictest.c | 6 ++----
33 1 files changed, 2 insertions(+), 4 deletions(-)
34
35diff --git a/src/cyclictest/cyclictest.c b/src/cyclictest/cyclictest.c
36index 11b6cea..8487409 100644
37--- a/src/cyclictest/cyclictest.c
38+++ b/src/cyclictest/cyclictest.c
39@@ -741,17 +741,15 @@ void *timerthread(void *param)
40 if (par->timermode == TIMER_ABSTIME)
41 tspec.it_value = next;
42 else {
43- tspec.it_value.tv_nsec = 0;
44- tspec.it_value.tv_sec = 1;
45+ tspec.it_value = interval;
46 }
47 timer_settime(timer, par->timermode, &tspec, NULL);
48 }
49
50 if (par->mode == MODE_SYS_ITIMER) {
51- itimer.it_value.tv_sec = 1;
52- itimer.it_value.tv_usec = 0;
53 itimer.it_interval.tv_sec = interval.tv_sec;
54 itimer.it_interval.tv_usec = interval.tv_nsec / 1000;
55+ itimer.it_value = itimer.it_interval;
56 setitimer (ITIMER_REAL, &itimer, NULL);
57 }
58
59--
601.7.4.1
61