The SLOB code that is generally available here differs significantly from what I often test with in labs. Recently I was contorting SLOB to hammer an EMC XtremIO All-Flash Array in a rather interesting way. Those of you in the ranks of the hundreds of SLOB experts out there will notice two things quickly in the following AWR snippet:
1) Physical single block reads are being timed by the Oracle wait interface at 601 microseconds (3604/5995141 == .000601) and this is, naturally for SLOB, the top wait event.
2) Disk file operations I/O is ranking as a top 5 timed event. This is not typical for SLOB.