apache restart slow

I just installed a new server that has lots of memory 64gb, and 40 cores and very fast SAS drives. It is MUCH slower than my old server which only had 8 cores and half the memory. apachectl configtest takes 2 minutes to complete the old server took 2 seconds apachectl graceful takes about 5...

Hello In sometime, our client claim about 502 error page, this error is produced by an restart/reload of apache, when there is an new hosting created or an php change version in control panel. The restart of apache is a bit slow, can be about 10s or 20s sometime and give error to our client...