On Thu, 29 Dec 2016, Richard Hipp wrote:
On 12/29/16, Bob Friesenhahn <bfrie...@simple.dallas.tx.us> wrote:
Is there a way to know how well cachegrind CPU
cycles map to real-world CPU usage?
Not that I know of. If you have any suggestions, please speak up.
I tried to make clear in the docs that I consider cachegrind to be a
proxy for CPU usage rather than a precise measurement.
If the proxy maps well to real results, then the improved results are
a considerable accomplishment.
At which point in the timeline shown at
https://www.sqlite.org/draft/cpu.html did sqlite developers start
tuning the implementation based on cachegrind results?
Thanks,
Bob
--
Bob Friesenhahn
bfrie...@simple.dallas.tx.us, http://www.simplesystems.org/users/bfriesen/
GraphicsMagick Maintainer, http://www.GraphicsMagick.org/
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