As explained in the previous section, showstats -u <USER_ID> reports statistics for a given user. The showstats -u command can be accessed by all users. They can use fields such as PHReq, PHDed, or WCAcc to gauge wallclock estimates. Accurate wallclock estimates allow a job to be scheduled as soon as possible in a slot that it will fit in. Low or high estimates can cause a job to be scheduled in a less favorable position.