ASP.NET MVC Performance April 17, 2009
A closer look at the recently released ASP.NET MVC 1.0 preffered web development stack and some of its performance implications. All of the displayed techniques are in use in production at MagCloud.
The talk was first given in Slovene on 15.4.2009 at a local Microsoft developers user group, SLODUG.
Additional notes:
We cannot assume that only implementing database caching will lead to a significant performance gain before optimizing any other aspects of page’s rendering. Here’s a few more metrics for the DUGG application:
- First run, as in the slides, no optimizations whatsoever: 5.9 requests / second
- Added: Compiled SQL-LINQ queries: 6.88 requests / second
- Added: Fully cached SQL-LINQ queries: 7.43 requests / second/
- Removed: expression links, replaced with route and actions links. Also fixed path to partials with the full path: 112 requests/second
That still leaves room for the treble performance improvement with URL caching and views that render enumerations.
It’s one of the general rules of optimizing software that speedups in one part of the application will have a lot of consequences elsewhere which you can’t really predict. Test, measure, profile, optimize a single hotspot, repeat!
Errata (23.4.2009)
Thanks to Simone Chiaretta’s analysis of my results, he’s nailed it that I forgot to disable the debug mode for benchmarks (oops!). This disables ASP.NET MVC’s internal cache for paths to views, rendering my part of optimization notes to replace paths to views with full paths irrelevant. I’ve re-run all of the benchmarks, removed two slides and added an errata to the end of the slides.
It would be nice if I can be proven wrong on other points as well. 
Nice breakdown of the performance implementations…
as it was pretty obvious, the biggest gain comes from caching the data tier.
Well done Rudi. Any plan to publish the demo code? I would play with the demo app adding client-side rendering and test few other ideas.
Great work!
Gorazd and Rudi, congrats to both for an very interesting and useful presentation.
Regards, Petar
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Are you sure you did not run your tests in debug mode?
> Are you sure you did not run your tests in debug mode?
Uh, I actually did have it on. I had way too many copies of the project while testing this, the debug mode slipped thru.
I’ve checked the performance impact of this change on DUGG – it indeed makes making full paths to partials a moot point. But on the other end, with the fully optimized version, it doesn’t make a difference at all.
I remember testing this switch half a year or more ago, with ASP.NET MVC CTP, it didn’t make a difference at all for our production (MagCloud) website. Any idea when this caching functionality was added to MVC?
Anyways, this requires an errata on the slides and a note about the debug switch and its effect on this path resolving. Coming later this week.
Thank you for correcting the slides and putting the errata on the post.
I just checked the old source code of ASP.NET MVC: the beta version didn’t have that caching in place, so probably it has been introduced with RC1 in mid-January.
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Tank you posting this great presentation.
It made me think a lot on my MVC application.
That was nice. Thank you for sharing this one.
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Thanks.
I found this very valuable
I have realized that declarative partial views are much faster than RenderPartial. Just register your partial view:
And use it the old way:
<% for (int i = 0; i
Odličan test, baš ono šta je trebalo još od izdavanja prve preview verzije.
Thanks for giving me other metrics as i have only idea of database caching .
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Would be cool if you could update your numbers for MVC 4.5
Regards