my devshares delegate (first screenshot of this thread, this post: https://bitsharestalk.org/index.php?topic=14852.msg192315#msg192315
) is running 0.6.3 on debian jessie, 2-core xeon and 4G RAM.
the second and third screenshot are from my laptop which is a 2012 macbook pro, with osx 10.9, devshares 0.6.3 as well.
here's a new one from my laptop where I completely removed the devshares dir:
as you can see, it starts by synchronizing the blockchain and then the same pattern appears. Note that total average cpu usage is not really that high, it's more the pattern that bothers me (so for instance just checking your average daily usage of your server will not show any unusual cpu usage). I am pretty sure also that this appeared 3 days ago and wasn't present before.
Unrelated to this issue, but still worth noticing, is that my BitShares delegate has an extremely low cpu usage (uncannily low, actually), at the cost of a small memory leak (this appeared in bts 0.6.2, 0.6.1 had a more normal cpu usage and no mem leak). Here's a screenshot (specs are the same as my dvs delegate, 2-core xeon and 4G RAM)