On Fri, Oct 28, 2016 at 12:31:29PM +0300, Marius Vlad wrote: > v2: > - don't read cached values (Chris Wilson) > - warn on per connector, and fail per mean (Chris Wilson) > > These are synthetic: 5us per connector, and 600us for all (as > threshold). > > Signed-off-by: Marius Vlad <marius.c.vlad@xxxxxxxxx> > --- > tests/Makefile.sources | 2 +- > tests/kms_sysfs_edid_timing | 25 ---------- > tests/kms_sysfs_edid_timing.c | 107 ++++++++++++++++++++++++++++++++++++++++++ > 3 files changed, 108 insertions(+), 26 deletions(-) > delete mode 100755 tests/kms_sysfs_edid_timing > create mode 100644 tests/kms_sysfs_edid_timing.c > > diff --git a/tests/Makefile.sources b/tests/Makefile.sources > index b1511c6..8af455a 100644 > --- a/tests/Makefile.sources > +++ b/tests/Makefile.sources > @@ -212,6 +212,7 @@ TESTS_progs = \ > kms_sink_crc_basic \ > prime_udl \ > drv_module_reload \ > + kms_sysfs_edid_timing \ > $(NULL) > > # IMPORTANT: The ZZ_ tests need to be run last! > @@ -222,7 +223,6 @@ TESTS_scripts_M = \ > TESTS_scripts = \ > debugfs_emon_crash \ > drv_debugfs_reader \ > - kms_sysfs_edid_timing \ > sysfs_l3_parity \ > test_rte_check \ > tools_test \ > diff --git a/tests/kms_sysfs_edid_timing b/tests/kms_sysfs_edid_timing > deleted file mode 100755 > index 46ea540..0000000 > --- a/tests/kms_sysfs_edid_timing > +++ /dev/null > @@ -1,25 +0,0 @@ > -#!/bin/bash > -# > -# This check the time we take to read the content of all the possible connectors. > -# Without the edid -ENXIO patch (http://permalink.gmane.org/gmane.comp.video.dri.devel/62083), > -# we sometimes take a *really* long time. So let's just check for some reasonable timing here > -# > - > -DRM_LIB_ALLOW_NO_MASTER=1 > - > -SOURCE_DIR="$( dirname "${BASH_SOURCE[0]}" )" > -. $SOURCE_DIR/drm_lib.sh > - > -TIME1=$(date +%s%N) > -cat $(find /sys/devices/|grep drm | grep /status) > /dev/null > -TIME2=$(date +%s%N) > - > -# time in ms > -RES=$(((TIME2 - TIME1) / 1000000)) > - > -if [ $RES -gt 600 ]; then > - echo "Talking to outputs took ${RES}ms, something is wrong" > - exit $IGT_EXIT_FAILURE > -fi > - > -exit $IGT_EXIT_SUCCESS > diff --git a/tests/kms_sysfs_edid_timing.c b/tests/kms_sysfs_edid_timing.c > new file mode 100644 > index 0000000..3b8bca0 > --- /dev/null > +++ b/tests/kms_sysfs_edid_timing.c > @@ -0,0 +1,107 @@ > +/* > + * Copyright © 2016 Intel Corporation > + * > + * Permission is hereby granted, free of charge, to any person obtaining a > + * copy of this software and associated documentation files (the "Software"), > + * to deal in the Software without restriction, including without limitation > + * the rights to use, copy, modify, merge, publish, distribute, sublicense, > + * and/or sell copies of the Software, and to permit persons to whom the > + * Software is furnished to do so, subject to the following conditions: > + * > + * The above copyright notice and this permission notice (including the next > + * paragraph) shall be included in all copies or substantial portions of the > + * Software. > + * > + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR > + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, > + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL > + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER > + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING > + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS > + * IN THE SOFTWARE. > + */ > +#include "igt.h" > +#include "igt_debugfs.h" > +#include "igt_sysfs.h" > +#include "igt_core.h" > + > +#include <dirent.h> > +#include <fcntl.h> > +#include <sys/stat.h> > +#include <time.h> > + > +#define USEC_PER_SEC (1000*1000) > +#define THRESHOLD_PER_CONNECTOR 5 > +#define THRESHOLD_TOTAL 600 > + > +IGT_TEST_DESCRIPTION("This check the time we take to read the content of all " > + "the possible connectors. Without the edid -ENXIO patch " > + "(http://permalink.gmane.org/gmane.comp.video.dri.devel/62083), " > + "we sometimes take a *really* long time. " > + "So let's just check for some reasonable timing here"); > + > +static uint64_t > +mean(uint64_t *a, size_t a_len) > +{ > + int p; > + uint64_t __sum; > + > + for (p = 0, __sum = 0; p < a_len; p++) { > + __sum += a[p]; > + } > + > + return (__sum / a_len); > +} See igt_stats.h: igt_mean > +igt_simple_main > +{ > + int dir = igt_sysfs_open(-1, NULL); Hmm, that will try to find intel - I was hoping to be a little more generic and do every cardN-connectorM in /sys/class/drm (not /sys/class/drm/card0 as sysfs_open will return) > + DIR *dirp = fdopendir(dir); > + struct dirent *de; > + > + int i, fd = 0; > + int fds[32]; > + > + uint64_t elapsed, elapsed_mean; > + uint64_t a[32]; > + > + struct stat st; > + struct timespec start = {}; > + > + memset(fds, -1, sizeof(fds)); > + memset(a, -1, sizeof(a)); > + > + while ((de = readdir(dirp))) { > + > + if (*de->d_name == '.') > + continue; > + > + if (fstatat(dir, de->d_name, &st, 0)) > + continue; > + > + if (S_ISDIR(st.st_mode) && !strncmp(de->d_name, "card0-", 6)) { sysfs_open would have reported the index as assuming card0 fails if vgem was loaded first, for example. > + int dfd = openat(dir, de->d_name, O_RDONLY); > + igt_assert(dfd > 0); > + fds[fd++] = dfd; > + } > + } > + closedir(dirp); > + > + for (i = 0; i < fd; i++) { > + igt_sysfs_set(fds[i], "status", "detect"); > + > + elapsed = igt_nsec_elapsed(&start); > + igt_sysfs_get(fds[i], "status"); > + elapsed = igt_nsec_elapsed(&start); > + > + igt_warn_on_f(elapsed > (THRESHOLD_PER_CONNECTOR * USEC_PER_SEC), > + "Threshold per connector exceeded (elapsed %lu ns)\n", elapsed); I was suggesting we repeat the probe of each connector several times. DIR *dir = opendir("/sys/class/drm"); while ((de = readdir(dir)) { struct igt_mean mean = {}; struct stat st; char path[128]; if (*de->d_name == '.') continue; snprintf(path, sizeof(path), "/sys/class/drm/%s/status", de->d_name); if (stat(path, &st) continue; for (int i = 0; i < 15; i++) { struct timespec tv; int fd; fd = open(path, O_WRONLY); igt_nsec_elapsed(&tv); write(fd, "detect\n", 7); igt_mean_add(&mean, igt_nsec_elapsed(&tv)); close(fd); } if (mean.max > 10e6) /* 10 milisecond */ igt_warn("%s: probe time exceed 10ms, max=%.2fms, avg=%.2fms\n", de->d_name, mean.max / 1e6, mean.mean / 1e6); igt_assert_f(mean.mean < 50e6, "%s: average probe time exceeded 50ms, max=%.2fms, avg=%.2fms\n", de->d_name, mean.max / 1e6, mean.mean / 1e6); } closedir(dir); -- Chris Wilson, Intel Open Source Technology Centre _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
