It is not guaranteed Linux kernel was configured with process I/O
statistics enabled. If process I/O statistcs are not present, issue
a one time warning and do not attempt to read the non-existing stats
counters.
[YOCTO#9025]
Signed-off-by: Juro Bystricky <juro.bystri...@intel.com>
---
meta/classes/buildstats.bbclass | 24 ++++++++++++++++--------
1 file changed, 16 insertions(+), 8 deletions(-)
diff --git a/meta/classes/buildstats.bbclass b/meta/classes/buildstats.bbclass
index e58d37b..72a3dd9 100644
--- a/meta/classes/buildstats.bbclass
+++ b/meta/classes/buildstats.bbclass
@@ -25,13 +25,14 @@ def get_process_cputime(pid):
'cstime' : fields[16],
}
iostats = {}
- with open("/proc/%d/io" % pid, "r") as f:
- while True:
- i = f.readline().strip()
- if not i:
- break
- i = i.split(": ")
- iostats[i[0]] = i[1]
+ if os.path.isfile("/proc/%d/io" % pid):
+ with open("/proc/%d/io" % pid, "r") as f:
+ while True:
+ i = f.readline().strip()
+ if not i:
+ break
+ i = i.split(": ")
+ iostats[i[0]] = i[1]
resources = resource.getrusage(resource.RUSAGE_SELF)
childres = resource.getrusage(resource.RUSAGE_CHILDREN)
return stats, iostats, resources, childres
@@ -111,7 +112,14 @@ python run_buildstats () {
if isinstance(e, bb.event.BuildStarted):
########################################################################
- # at first pass make the buildstats heriarchy and then
+ # If the kernel was not configured to provide I/O statistics, issue
+ # a one time warning.
+
########################################################################
+ if not os.path.isfile("/proc/%d/io" % os.getpid()):
+ bb.warn("The Linux kernel was not configured to provide process
I/O statistics. (CONFIG_TASK_IO_ACCOUNTING is not set)")
+
+
########################################################################
+ # at first pass make the buildstats hierarchy and then
# set the buildname
########################################################################
bb.utils.mkdirhier(bsdir)
--
1.9.1
--
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