| From: | Jesper Krogh <jesper(at)krogh(dot)cc> |
|---|---|
| To: | Daniel Farina <daniel(at)heroku(dot)com> |
| Cc: | Craig Ringer <craig(at)2ndquadrant(dot)com>, Josh Berkus <josh(at)agliodbs(dot)com>, Pg Hackers <pgsql-hackers(at)postgresql(dot)org>, "pgsql-rrreviewers(at)postgresql(dot)org" <pgsql-rrreviewers(at)postgresql(dot)org> |
| Subject: | Re: [HACKERS] [9.4 CF] Free VMs for Reviewers & Testers |
| Date: | 2013-07-09 07:24:49 |
| Message-ID: | 7165D205-5947-4E2C-9CA6-DB303DA7C8DA@krogh.cc |
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| Thread: | |
| Lists: | pgsql-hackers pgsql-rrreviewers |
>
> The really, really big ones are useful even for pushing limits, such
> as cr1.8xlarge, with 32 CPUs and 244GiB memory. Current spot instance
> price (the heavily discounted "can die at any time" one) is $0.343/hr.
> Otherwise, it's 3.500/hr.
>
Just to keep in mind cpus are similar throttled:
One EC2 Compute Unit provides the equivalent CPU capacity of a 1.0-1.2 GHz 2007 Opteron or 2007 Xeon processor. This is also the equivalent to an early-2006 1.7 GHz Xeon processor referenced in our original documentation.
Who knows what that does to memory bandwidth / context switches etc.
Jesper
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