High server CPU time after upgrade

[DML73]

I upgraded from version 1.3.8a to 1.5.1 earlier this month. When looking at my web-host's CPU usage time I can see that after the upgrade the CPU usage time has almost doubled in average (see attached image). Is version 1.5.1 really that much more heavy on the CPU time than 1.3.8a?? Or are there any setting I need to set to optimize/lower the CPU time?

[mc12345678]

I upgraded from version 1.3.8a to 1.5.1 earlier this month. When looking at my web-host's CPU usage time I can see that after the upgrade the CPU usage time has almost doubled in average (see attached image). Is version 1.5.1 really that much more heavy on the CPU time than 1.3.8a?? Or are there any setting I need to set to optimize/lower the CPU time?

While I also find that information interesting, I wonder with regards to the older version and it's highly likely security problems as compared to the newer version which reduces those known issues if there is an equivalent increase in attempts to the site thus causing more CPU time to "defend" what used to be allowed...

Ie, are there other values against which you can provide more of a comparison other than CPU time? Such as visits, or number ofpages, etc...

Of course I am also considering that everything was updated, there are no errant files causing the system confusion,etc... I haven't seen others compare/provide CPU time, so I can not speak to that actual perspective.

[DML73]

Here is the server stats attached. Visits and KB has actually gone down a little, but pages and hits seems to have been going up a bit; but is this really enough to almost double the CPU time??
Plugins installed are mainly the same in both versions with the exception of the "CEON URL's" module which was not installed in version 1.3.8a. I know the CEON URL module re-writes the URL's but can this really put this extra load on the CPU time??

[DML73]

Nobody has any clue to why the CPU time is high after upgrading to 1.5.1?

[dbltoe]

One question that jumps to mind is just who is using the CPU? Is this an indication of just your usage or has the host added someone to your shared server?

mc12345678 - Can you diagram this sentence please?

While I also find that information interesting, I wonder with regards to the older version and it's highly likely security problems as compared to the newer version which reduces those known issues if there is an equivalent increase in attempts to the site thus causing more CPU time to "defend" what used to be allowed...

[twitchtoo]

Did you add any plugins to your new v1.51 install that we should consider?

[DML73]

One question that jumps to mind is just who is using the CPU? Is this an indication of just your usage or has the host added someone to your shared server?

I am on a shard server however I was told by my hosting company that this is my CPU time.