Memtest86V6.1.0 run slowly at Row Hammer test

[enzo]

when tested on AMD FX-8800P Radeon R7 with 8G dimm, Memtest86 run slowly at 91% while Row Hammer test, it cost almost several hours(5 hours,or more), is that normal ? what it did when hammer test,seems like it test every line of the whole memory , it take very long time to do this test, can it impove or accelerate the test ?

[David (PassMark)]

How many passes were done in 5 hours?
Was it using a single core or multiple core?

[enzo]

it used 4 core, don't know specific passes in 5 hours, but didn't complete the whole MEmtest86, sitll runing at 91%.

[David (PassMark)]

The default is to perform 4 passes. But if it there are no errors in the initial couple of passes the odds of finding a fault in pass 3 or 4 are low.