Load thresholds

Load threshold parameters define the conditions beyond which a host is considered busy by LIM and are a major factor in influencing performance. No jobs will be dispatched to a busy host by LIM’s policy. Each of these parameters is a load index value, so that if the host load goes beyond that value, the host becomes busy.

LIM uses load thresholds to determine whether to place remote jobs on a host. If one or more LSF load indices exceeds the corresponding threshold (too many users, not enough swap space, etc.), then the host is regarded as busy and LIM will not recommend jobs to that host.

Thresholds can be set for any load index supported internally by the LIM, and for any external load index.

If a particular load index is not specified, LIM assumes that there is no threshold for that load index. Define looser values for load thresholds if you want to aggressively run jobs on a host.

Load indices that affect LIM performance

Load index



15-second CPU run queue length


1-minute CPU run queue length


15-minute CPU run queue length


Paging rate in pages per second


Available swap space


Interactive idle time


Number of users logged in