Eliminated the uuid overhead (create them only when needed). We're down to 2%. Out of which 1% is to get the remote address from the servlet engine.
http://ws.zones.apache.org/~dims/msg-context-004.png thanks, dims On 2/5/07, David Illsley <[EMAIL PROTECTED]> wrote:
I know what you were worried about... FWIW, I'm worried about the UUID thing as well. I'm also worried about the (now) 4% taken setting up transport information when it's really not clear what's CPU intensive in there (or that it should be). David On 05/02/07, Davanum Srinivas <[EMAIL PROTECTED]> wrote: > David, > > Latest run (fresh from svn), it's about 4%...It's the getUUID's and > string concat to make the correlation id's. that's what i was talking > about :) > > http://ws.zones.apache.org/~dims/msg-context-003.png > > -- dims > > On 2/5/07, David Illsley <[EMAIL PROTECTED]> wrote: > > Hi Dims, > > Looking at uuid-001.png, > > AxisServlet.createAndSetInitialParamsToMsgCtxt is causing 5% of the > > total time which seems a lot for what I thought it was doing. I don't > > have a profiler to hand, could you show us a breakdown of what that > > method is calling and why it's taking so long? > > > > Cheers, > > David > > > > On 05/02/07, Davanum Srinivas <[EMAIL PROTECTED]> wrote: > > > Here's one more. Proliferation of getUUID's. > > > > > > http://ws.zones.apache.org/~dims/uuid-001.png > > > http://ws.zones.apache.org/~dims/uuid-002.png > > > > > > We used to call getUUID once or at most twice. Now we create 6 uuid's > > > for each req/resp taking up 1.9% (375/19533 * 100). Please change the > > > code to create the correlation uuid's only when trace/debug flag is > > > on. Otherwise, they should not be created. > > > > > > thanks, > > > dims > > > > > > On 2/4/07, Davanum Srinivas <[EMAIL PROTECTED]> wrote: > > > > Bill, > > > > > > > > I just started looking into the perf aspects of this checkin...Here's > > > > the first one. Please see the following 2 images: > > > > > > > > http://people.apache.org/~dims/msg-context-001.png > > > > http://people.apache.org/~dims/msg-context-002.png > > > > > > > > As you can plainly see, the servlet is called 2500 times, and takes a > > > > total time of 20360 ms . The method checkActivateWarning which is > > > > basically a no-op gets called 257,500 times and takes a total of 234 > > > > ms. Which is basically 1.14% of the total time taken to process the > > > > messages. Am sure you agree that checkActivateWarning not present in > > > > r495105 and was introduced later. > > > > > > > > So am going to get rid of it. thanks. > > > > > > > > thanks, > > > > dims > > > > > > > > On 1/29/07, Bill Nagy <[EMAIL PROTECTED]> wrote: > > > > > Hi Sanjiva, > > > > > > > > > > On Mon, 2007-01-29 at 23:42 +0530, Sanjiva Weerawarana wrote: > > > > > > Bill, IMO I made a mistake in lifting my -1 on this patch .. this > > > > > > could've and should've gone in as an auxiliary bit of code without > > > > > > modifying MC at all. Calling mc.activateMessageContext on *every* > > > > > > message that comes in seems like a major ovehead to the mind even if not > > > > > > to the body (you know what I mean). There was no technical need > > > > > > whatsoever for this code to be in MC itself for Matt to be able to do > > > > > > whatever he needs to make Sandesha persist using Java object > > > > > > serialization instead of the serialization architecture that exists > > > > > > now. > > > > > > > > > > > > Next time I won't give in so easy :). > > > > > > > > > > You are certainly entitled to your opinion; I did attempt to continue > > > > > the discussion. > > > > > > > > > > > > > > > > > In any case, I'm yet to see an explanation from Anne for the algorithm > > > > > > used to figure out the parent service context etc. for a message > > > > > > context. Anne, can you explain how you're going about figuring those > > > > > > refs out please? Please don't say RTFS :(. > > > > > > > > > > > > > > > > I will make sure that she is aware of your request. > > > > > > > > > > > We need to performance compare 1.1.1 with the current head and see what > > > > > > the impact of this change is. > > > > > > > > > > I would be more than happy for someone to compare r495105 to r495106(the > > > > > version where the changes were committed) and would be more than willing > > > > > to address any performance concerns that arise from that comparison. > > > > > > > > > > > > > > > > > On code conventions- search the archives please .. we've had lots of > > > > > > discussion on this in the early days and decided on the conventions. I'm > > > > > > pretty sure we put them in the wiki somewhere but have no idea where off > > > > > > the top of my head :(. Interestingly, even the original JAX-WS proposal > > > > > > by IBM mentions coding conventions: > > > > > > http://wiki.apache.org/ws/FrontPage/Axis2/JAX-WS-Proposal. so maybe > > > > > > someone in IBM found a ref? > > > > > > > > > > I was unable to find them on the wiki (I looked at both the current as > > > > > well as the old root pages.) The JAX-WS proposal only speaks in the > > > > > abstract about code organization -- it says nothing about the formatting > > > > > of Java source files. Certainly you can't expect people to adhere to > > > > > coding guidelines that only appear in email messages from almost 2 years > > > > > ago or even know that they exist in the first place. > > > > > > > > > > -Bill > > > > > > > > > > > > > > > > > Sanjiva. > > > > > > > > > > > > On Mon, 2007-01-29 at 07:27 -0800, Bill Nagy wrote: > > > > > > > Hi Deepal, > > > > > > > > > > > > > > On Mon, 2007-01-29 at 11:41 +0530, Deepal Jayasinghe wrote: > > > > > > > > Hi all; > > > > > > > > > > > > > > > > I just went though the current code base and realized that > > > > > > > > MessageContext code has been changed a lot . I found few issues with the > > > > > > > > code base and hope we need to fix them. So I thought of sending this > > > > > > > > mail for everyone's consideration. > > > > > > > > > > > > > > > > Well someone please explain to me whose going to need MessageContext > > > > > > > > serialization , > > > > > > > > Chamikara : Do you want that for Sandesha ? > > > > > > > > Ruchith : Do you want that for Security ? > > > > > > > > If none of you want this , who else need this ? > > > > > > > > > > > > > > As Matt pointed out, we went through this on an earlier discussion -- > > > > > > > Sandesha is the intended consumer. > > > > > > > > > > > > > > > > > > > > > > I am asking this question b'coz introduction of MC serialization we have > > > > > > > > the following for each req. > > > > > > > > - When ever Axis2 received a message it calls > > > > > > > > activateMessageContext(msgContext); > > > > > > > > - And what that does is , it calls mc.activate(engineContext); method > > > > > > > > > > > > > > > > Unfortunately that method is TOO long and was very difficult to > > > > > > > > understand:). Ann can you simplify the method (that will be very helpful) . > > > > > > > > > > > > > > Actually, if you notice, the first line of MessageContext.activate(...) > > > > > > > is a short-circuit test on needsToBeReconciled, which is only ever set > > > > > > > when the MessageContext (and related parts) are deserialized using the > > > > > > > MessageContext deserialization routines -- for all other cases, it ends > > > > > > > up being a no-op so you can stop reading at that point 8-]. As for the > > > > > > > method being too long, of the 306 lines in that method, 110 are > > > > > > > comments/log messages, and the rest of the code consists of > > > > > > > if-not-null-invoke-a-method blocks. Unfortunately the MessageContext > > > > > > > has a lot of handles to other objects, so there need to be a number of > > > > > > > those tests. If you're having difficulty understanding a particular > > > > > > > section of that method, please ask and we'd be happy to explain it to > > > > > > > you. > > > > > > > > > > > > > > I certainly think that the rest of the code could use some "code > > > > > > > bloat" (i.e. comments) -- e.g. there are no class-level comments on > > > > > > > ListenerManager, AxisConfiguration, PhaseResolver (just to name a few.) > > > > > > > > > > > > > > > > > > > > > > > In the meantime code convention in MC has changed a lot and need to have > > > > > > > > very consistent code convention, please do not differ form that. > > > > > > > > > > > > > > This is the second time that "code conventions" have been mentioned > > > > > > > (Sanjiva brought this up in an earlier discussion as well) -- I was not > > > > > > > aware of these, and was unable to find anything in the docs that talk > > > > > > > about them. (The Developer Guidelines only talk about the mailing > > > > > > > list.) Could you please point me to where these are codified? > > > > > > > > > > > > > > > Among the all , the most worst thing I saw in the code is following kind > > > > > > > > of things, I strongly believe we should not have this kind of code in > > > > > > > > the code base, If you found such kind of code please point out them then > > > > > > > > and there. > > > > > > > > > > > > > > > > - String tmpClassNameStr = "null"; (is this the way we initialize to > > > > > > > > NULL ) > > > > > > > > - String tmpHasList = "no list" > > > > > > > > - Unnecessary casting > > > > > > > > - A number of unused variables > > > > > > > > - Variable declarations here and there (as an example private static > > > > > > > > final String - selfManagedDataDelimiter = "*";) > > > > > > > > > > > > > > I'm indifferent on the first two; in some cases it makes the code easier > > > > > > > to read and debug at the cost of an assignment and space in the string > > > > > > > table. The third one should be caught by any decent compiler and > > > > > > > eliminated (so long as you're not casting back and forth) and again > > > > > > > sometimes enhances readability so I'm indifferent on this one as well. > > > > > > > I agree on the fourth -- I don't think that there's ever a good case for > > > > > > > extraneous variables. The fifth is again a code readability issue and > > > > > > > one of the reasons that Java doesn't require that you declare everything > > > > > > > up front. > > > > > > > > > > > > > > -Bill > > > > > > > > > > > > > > > > > > > > > --------------------------------------------------------------------- > > > > > > > To unsubscribe, e-mail: [EMAIL PROTECTED] > > > > > > > For additional commands, e-mail: [EMAIL PROTECTED] > > > > > > > > > > > > > > > > > > > > > > --------------------------------------------------------------------- > > > > > To unsubscribe, e-mail: [EMAIL PROTECTED] > > > > > For additional commands, e-mail: [EMAIL PROTECTED] > > > > > > > > > > > > > > > > > > > > > > -- > > > > Davanum Srinivas :: http://wso2.org/ :: Oxygen for Web Services Developers > > > > > > > > > > > > > -- > > > Davanum Srinivas :: http://wso2.org/ :: Oxygen for Web Services Developers > > > > > > --------------------------------------------------------------------- > > > To unsubscribe, e-mail: [EMAIL PROTECTED] > > > For additional commands, e-mail: [EMAIL PROTECTED] > > > > > > > > > > > > -- > > David Illsley - IBM Web Services Development > > > > > -- > Davanum Srinivas :: http://wso2.org/ :: Oxygen for Web Services Developers > -- David Illsley - IBM Web Services Development --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
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