*** This bug is a duplicate of bug 1221829 ***
https://bugs.launchpad.net/bugs/1221829
Public bug reported:
On an idle phone, ofonod is a little bit busy.
With strace I'm seeing messages like "Operation currently not available"
being written over a socket (dbus?) at very regular intervals of a few
seconds:
poll([{fd=3, events=POLLIN}, {fd=4, events=POLLIN}, {fd=7, events=POLLIN},
{fd=6, events=POLLIN}], 4, 0) = 1 ([{fd=3, revents=POLLIN}])
sendmsg(6, {msg_name(0)=NULL,
msg_iov(2)=[{"l\3\1\1&\0\0\0\216\0\0\0G\0\0\0\6\1s\0\5\0\0\0:1.46\0\0\0"...,
88}, {"!\0\0\0Operation currently not avai"..., 38}], msg_controllen=0,
msg_flags=0}, MSG_NOSIGNAL) = 126
sendmsg(6, {msg_name(0)=NULL,
msg_iov(2)=[{"l\3\1\1d\0\0\0\217\0\0\0W\0\0\0\6\1s\0\5\0\0\0:1.46\0\0\0"...,
104}, {"_\0\0\0Method \"Register\" with signa"..., 100}], msg_controllen=0,
msg_flags=0}, MSG_NOSIGNAL) = 204
poll([{fd=3, events=POLLIN}, {fd=4, events=POLLIN}, {fd=7, events=POLLIN},
{fd=6, events=POLLIN}], 4, -1) = 1 ([{fd=3, revents=POLLIN}])
read(3, "\2\0\0\0\0\0\0\0", 16) = 8
poll([{fd=3, events=POLLIN}, {fd=4, events=POLLIN}, {fd=7, events=POLLIN},
{fd=6, events=POLLIN}], 4, -1) = 1 ([{fd=6, revents=POLLIN}])
read(3, 0xbef48b84, 16) = -1 EAGAIN (Resource temporarily
unavailable)
write(3, "\1\0\0\0\0\0\0\0", 8) = 8
recvmsg(6, {msg_name(0)=NULL,
msg_iov(1)=[{"l\1\0\1\24\0\0\0\371\20\0\0n\0\0\0\1\1o\0\6\0\0\0/ril_0\0\0"...,
2048}], msg_controllen=0, msg_flags=MSG_CMSG_CLOEXEC}, MSG_CMSG_CLOEXEC) = 284
recvmsg(6, 0xbef48a98, MSG_CMSG_CLOEXEC) = -1 EAGAIN (Resource temporarily
unavailable)
The health-check tool is showing:
Context Switches:
PID Process Voluntary Involuntary Total
Ctxt Sw/Sec Ctxt Sw/Sec Ctxt Sw/Sec
3871 ofonod 6.00 0.07 6.07 (low)
System calls traced:
PID Process Syscall Count Rate/Sec
3871 ofonod clock_gettime 38 0.6333
3871 ofonod poll 36 0.6000
3871 ofonod recvmsg 26 0.4333
3871 ofonod read 24 0.4000
3871 ofonod sendmsg 24 0.4000
3871 ofonod restart_syscall 1 0.0167
Total 149 2.4833
So it seems a little bit busy at 0.6Hz regularly polling on poll() and
regularly doing reads and sends down a socket (dbus?) at 0.4Hz
Although this is not too bad, it still is surprising that it is writing
the same messages so frequently and consuming a little bit of CPU and
power.
** Affects: ofono (Ubuntu)
Importance: Undecided
Status: New
** This bug has been marked a duplicate of bug 1221829
ofonod is polling fairly regularly
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https://bugs.launchpad.net/bugs/1221830
Title:
ofonod is polling fairly regularly
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