In openSUSE Leap 42.2, the batch service doesn't start a job if the load average is above a threshold. This defaults to 0.8 in the source. This means that even if you have a multi-core multi-thread CPU which can handle the load, a job will not start until the CPU is fairly quiet.
Fortunately there is a command line setting to raise this threshold, see man 8 atd. What you have to do is
systemctl edit atd
and enter these lines:
[Service]
ExecStart=
ExecStart=/usr/sbin/atd -f -l 2
Then do
systemctl restart atd
A ps ax should show atd running with the new threshold. The first ExecStart resets the command line, and the second is the one that overrides the service that will be started by systemd. I have 4 cores so I chose 2. You might choose a different load threshold.
If you are running another distro that uses systemd, you should get the ExecStart command from the existing unit file, probably /usr/lib/systemd/system/atd.service and add the -l load to suit.
It would be nice if openSUSE could provide a setting for the threshold in /etc/sysconfig/atd in future.
Fortunately there is a command line setting to raise this threshold, see man 8 atd. What you have to do is
systemctl edit atd
and enter these lines:
[Service]
ExecStart=
ExecStart=/usr/sbin/atd -f -l 2
Then do
systemctl restart atd
A ps ax should show atd running with the new threshold. The first ExecStart resets the command line, and the second is the one that overrides the service that will be started by systemd. I have 4 cores so I chose 2. You might choose a different load threshold.
If you are running another distro that uses systemd, you should get the ExecStart command from the existing unit file, probably /usr/lib/systemd/system/atd.service and add the -l load to suit.
It would be nice if openSUSE could provide a setting for the threshold in /etc/sysconfig/atd in future.
