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62 messages in org.codehaus.groovy.devRe: [groovy-dev] Groovy performance: ...| From | Sent On | Attachments |
|---|---|---|
| Alex Tkachman | Feb 19, 2008 2:09 am | |
| Steven Devijver | Feb 19, 2008 2:37 am | |
| Alexandru Popescu ☀ | Feb 19, 2008 2:57 am | |
| Alex Tkachman | Feb 19, 2008 3:03 am | |
| Patric Bechtel | Feb 19, 2008 3:12 am | |
| Guillaume Laforge | Feb 19, 2008 3:25 am | |
| Guillaume Laforge | Feb 19, 2008 3:26 am | |
| Patric Bechtel | Feb 19, 2008 5:05 am | |
| Gavin Grover | Feb 19, 2008 5:51 am | |
| Steven Devijver | Feb 19, 2008 5:52 am | |
| Guillaume Laforge | Feb 19, 2008 5:54 am | |
| Tom Nichols | Feb 19, 2008 6:26 am | |
| Alex Tkachman | Feb 19, 2008 6:28 am | |
| Guillaume Laforge | Feb 19, 2008 6:35 am | |
| Tom Nichols | Feb 19, 2008 7:03 am | |
| Guillaume Laforge | Feb 19, 2008 7:38 am | |
| Chanwit Kaewkasi | Feb 19, 2008 7:52 am | |
| Charles Oliver Nutter | Feb 19, 2008 8:49 am | |
| Steven Devijver | Feb 19, 2008 10:03 am | |
| Charles Oliver Nutter | Feb 19, 2008 11:38 am | |
| Steven Devijver | Feb 19, 2008 12:11 pm | |
| Alex Tkachman | Feb 19, 2008 12:39 pm | |
| Alex Tkachman | Feb 19, 2008 12:48 pm | |
| tugwilson | Feb 19, 2008 1:36 pm | |
| Alex Tkachman | Feb 19, 2008 8:51 pm | |
| Guillaume Laforge | Feb 20, 2008 2:10 am | |
| Jochen Theodorou | Feb 20, 2008 9:46 am | |
| Martin C. Martin | Feb 20, 2008 5:25 pm | |
| Guillaume Laforge | Feb 21, 2008 1:35 am | |
| Tom Nichols | Feb 21, 2008 4:15 am | |
| Martin C. Martin | Feb 21, 2008 5:44 am | |
| Tom Nichols | Feb 21, 2008 6:22 am | |
| Smith, Jason, CTR, OASD(HA)/TMA | Feb 21, 2008 6:34 am | |
| Martin C. Martin | Feb 21, 2008 6:43 am | |
| Guillaume Laforge | Feb 21, 2008 6:48 am | |
| Guillaume Laforge | Feb 21, 2008 7:04 am | |
| Smith, Jason, CTR, OASD(HA)/TMA | Feb 21, 2008 7:18 am | |
| Charles Oliver Nutter | Feb 21, 2008 7:38 am | |
| Guillaume Laforge | Feb 21, 2008 7:42 am | |
| Martin C. Martin | Feb 21, 2008 8:36 am | |
| Martin C. Martin | Feb 21, 2008 8:48 am | |
| Pascal DeMilly | Feb 21, 2008 5:35 pm | |
| Gavin Grover | Feb 21, 2008 6:21 pm | |
| Jochen Theodorou | Feb 22, 2008 4:31 am | |
| Tom Nichols | Feb 22, 2008 4:49 am | |
| Charles Oliver Nutter | Feb 22, 2008 11:43 pm | |
| Guillaume Laforge | Feb 23, 2008 12:28 am | |
| Martin C. Martin | Feb 23, 2008 3:51 am | |
| Jochen Theodorou | Feb 23, 2008 2:49 pm | |
| Jochen Theodorou | Feb 23, 2008 2:53 pm | |
| Charles Oliver Nutter | Feb 24, 2008 2:01 am | |
| Martin C. Martin | Feb 24, 2008 3:56 am | |
| Martin C. Martin | Feb 24, 2008 4:11 am | |
| Charles Oliver Nutter | Feb 24, 2008 5:12 am | |
| Jochen Theodorou | Feb 24, 2008 3:17 pm | |
| Jochen Theodorou | Feb 24, 2008 3:31 pm | |
| Alexandru Popescu ☀ | Feb 24, 2008 3:36 pm | |
| Martin C. Martin | Feb 26, 2008 2:20 pm | |
| Martin C. Martin | Feb 26, 2008 3:15 pm | |
| Jochen Theodorou | Feb 27, 2008 2:38 am | |
| Jochen Theodorou | Feb 27, 2008 3:03 am | |
| Martin C. Martin | Mar 2, 2008 5:21 pm |
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| Subject: | Re: [groovy-dev] Groovy performance: what to do | Actions... |
|---|---|---|
| From: | Martin C. Martin (mar...@martincmartin.com) | |
| Date: | Feb 23, 2008 3:51:49 am | |
| List: | org.codehaus.groovy.dev | |
Charles Oliver Nutter wrote:
Excellent summary of the problems with this proposal. I have some comments below.
Jochen Theodorou wrote:
Groovy has atm dynamic typing. Any change with a fast mode goals a more or less static system, which is a major change for such a language. There is either version 2, which will mean you can not mix dynamic typed parts and static typed parts in the same area and there is version 3 which allows that, but will also give not many hints when it will do static and when it will do dynamic typing.
This is exactly what worried me. Because static typing goes through an entirely different mechanism, it would be both confusing and problematic for users. This is further complicated by the many users that would try to take their Groovy code and "make it faster" by adding static types. Suddenly dispatch rules would be completely different, and the code would break.
What do you think of the proposal that is simply a hint? The one where you tell the compiler you expect given object classes and metaclasses? There are two ways it could go:
- At runtime, if we don't have the expected classes & metaclasses, ignore the hint and do what you would have done anyway. This way, the semantics aren't changed, but if the types are as expected the call is much faster. If not, it's a little slower.
- At runtime, if things don't match, signal an error. This turns it into an assertion mechanism. This might be helpful in tracking down bugs and making the programmer's intention clearer, as well as performance.
??
Best, Martin
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