On 27 Apr 2018, at 2:50, si5 wrote: > We want to find an official document for postfix which will tell the > maximum > load capacities for postfix mail server. We tried to search for it but > we > could only find performance test research papers. > > Actually we have made few changes in postfix source code and we are > doing > performance testing on it . But we want to get an official document > where > postfix maximum capacities are checked after development so that we > can do > an analogous testing and then documentation. > > We tried to search for other mail servers also like Microsoft Exchange > server, IBM lotus domino, etc in this regard with no very relevant > results.
>There is a single reason for the lack of any "official" capacity >assertions for any MTA: no such metric can be operationally useful. The >SPECmail benchmark series was never useful for anything other than >generating a minor revenue stream for SPEC and giving salesfolk >meaningless numbers to throw at non-technical customers. It is good that >it was retired. Really thanks for taking time to reply. so presently in mail server testing benchmarks are not that important, we have to take into account our own relevant parameters? >To compare the performance of the canonical Postfix code to a modified >version, you need to first define what performance metrics you care >about and what sort of mail load you want to test against. Okay. So this means we can consider the areas of postfix source code where we have have worked on like queue management, etc ?. And we can include the general performance metrics like --> number of emails attempted in a given time, number of emails delivered in the given time, etc.? >You cannot compare your own test measurements to a baseline performance measurement >for the canonical Postfix code from tests done by someone else with a >test load you can't replicate on a platform you can't replicate. You >need to generate your own controls. Okay. Quite clear. -- Sent from: http://postfix.1071664.n5.nabble.com/Postfix-Users-f2.html
