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Re: The Speed of UnitTestsby
DevCO Colombia , David Arnold
Hi Brian, I'm not sure you probably misunderstood the discussion, yet anyhow pedantry is very welcome! We are reasoning about the execution speed of tests as a 1 hour test run is something not really acceptable if you want to run your tests regularly. Or at least, being precise: The chosen paradigm of this discussion is, that 1 hour test run is not acceptable.
El mié., 17 ago. 2016 a las 10:32, Brian Haines (<email@example.com>) escribió:
Apologies, but my pedantry is causing me to twitch... Benchmarking is not Unit Testing https://en.wikipedia.org/wiki/Unit_testing https://en.wikipedia.org/wiki/Benchmark_(computing) Also, see: https://www.postgresql.org/docs/9.5/static/kernel-resources.html https://www.postgresql.org/docs/9.5/static/runtime-config-resource.html Also, check your reverse proxying settings keepalive, timeouts etc. I now return you to your regular progamming... On 2016-08-17 12:17 PM, David Arnold wrote: > I'm sorry, the second answer points out the possibility to run PSQL > tablespace on ramfs, I guess this comes at least very close to a > non-existent native in-memory mode. Was this the approach? > > El mié., 17 ago. 2016 a las 10:08, David Arnold (<firstname.lastname@example.org > <mailto:email@example.com>>) escribió: > > In Memory PSQL: 3 mins down of ca 60 min, If possible, I'd like to > know further details on this. > SSD: 2 mins down > > Interesting, if the above thing about in memory transaction really > means "PSQL odes never touch any disk in this mode", then I'm > surprised by this and my hypothesis that it's disk that is slowing > down test execution would not be valid. > > If this holds true, then I guess it's neither disk, nor memory, but > CPU which limits speed. But looking close, you can see that really a > lot of time (weather be it disk, memory or CPU) is spend on > initializing modules and, yes, module data specifically. I haven't > measured (as it's not as easy as sum up the test execution seconds), > but it feels like the responsible when watching test logs as they > come in. > > Still I don't entirely trust the scope of the in memory transaction > in PSQL. See also here, which states, that it is not > possible: http://stackoverflow.com/questions/7872693/running-postgresql-in-memory-only > Were you referring to the buffer ram? This greatly reduces disk IO > on READS and is really powerful, still if you get 3 mins this means > a 5% improvement on the DB READ part of the equation only. > > Best, David > > El mié., 17 ago. 2016 a las 4:18, Jairo Llopis > () > escribió: > > > 2016-08-17 10:42 GMT+02:00 Nhomar Hernandez <firstname.lastname@example.org > <mailto:email@example.com>>: > > well that's a quick hipothesis (which is that, 'just' an > hypothesis) BTW, if you measure the inner points in your > environment you can measure every part by yourself. > > > Indeed, it's just an hypothesis. > > > We did it, set an environment all those 13 minutes is > Postgresql + set the base database + other magic, in our > test environments on CI it is like 8/10 minutes (we manage > the R&D by ourself) and it is due to the test framework > itself (as I said it is integration tests not only unittests). > > But BTW that do not MUST be by anybody,that "should be" done > by the people that need the change (in our case when we find > a performance problem we attack that with our enterprise and > work with odoo side/by/side we expend A LOT of time in R&D > case) as you mentioned this time must be paid and covered > and that's why the enterprise comes alive and/or the > community work, nobody has any dutie until an exchange of > responsability with a commercial agreement is set (either > you-your customer, you-you, you-odoo-customer....). > > As you read in the licence (and in any other opensuource > project) it comes without any responsibility and it is > distributed as it is. > > But BTW if you dedicate a while to an specific topic and put > such specific conclusion on github this will help more than > claim right and duties on others, don't you think? > > > Relax, please. I was just saying that it means a lot of R&D. Of > course, we also invest a lot of time in R&D, but in other things > that you probably will use some day too. That's the good point > of communities! 😊 > > You are asking me to invest that time just to prove my > hypothesis, but you are missing the point that I'm just posting > an email, a little opinion on where the real problem probably > is, not a 20h R&D project. I guess if you post to a mailing > list, you expect some response, and I'm only trying to help here. > > > I do not understand this, odoo is data driven and you have > only one backend..... > > > Weren't you talking about SQLite in memory? > > > If you could, however, use in-memory Postgres > transactions, that would get what you want: skip hard disk. > > We did (this put down 3 minutes the time in a 1 hour test > environement we put back to disk but no remember why) > > > Or simply buy a fast SSD. > > > We did also 2 minutes down in 1 hour environment. > > > Then indeed the solution must be be in other place. > > Thanks for your time & effort on improving on this matter! > > Regards. > > > -- > Jairo Llopis > > _______________________________________________ > Mailing-List: https://www.odoo.com/groups/community-59 > Post to: mailto:firstname.lastname@example.org > <mailto:email@example.com> > Unsubscribe: https://www.odoo.com/groups?unsubscribe > > _______________________________________________ > Mailing-List: https://www.odoo.com/groups/community-59 > Post to: mailto:firstname.lastname@example.org > Unsubscribe: https://www.odoo.com/groups?unsubscribe >