I should have also said... thanks for generating the perf data. It is extremely interesting :)
On Wed, Nov 12, 2008 at 10:12 PM, Darin Fisher <[EMAIL PROTECTED]> wrote: > Keep in mind that pipes are not really the fastest IPC mechanism for > windows. Mike had a much faster shared memory based solution. However, we > found that the pipe based solution was easiest to integrate with the > sandbox, and it was also fast enough such that other factors outweigh the > performance differential between the two mechanisms. I guess what I'm > saying is that we should probably not get too caught up in the performance > differences here unless we think that is the dominant factor. Other things > might be more important such as how easy it is to exchange shared memory and > waitable events (the equivalent of a windows event object). > -Darin > > > On Wed, Nov 12, 2008 at 7:07 PM, Jeremy Moskovich <[EMAIL PROTECTED]>wrote: > >> Hi Dan, >> >> Looking at the current IPC behavior is definitely on my list of things to >> do. >> >> I don't think that should change the interpretation of the data though. >> According to our measurements, Mach messages are always faster *. >> >> So the question becomes, not is it faster, but by how many orders of >> magnitude. >> >> Best regards, >> Jeremy >> >> * Using inline messages there's a break even at some point as the cost of >> copying data takes over, but as discussed we can use OOL messages to get >> really fast (~30uSec) constant time sends for messages >5K. >> >> On Wed, Nov 12, 2008 at 5:08 PM, Dan Kegel <[EMAIL PROTECTED]>wrote: >> >>> >>> On Wed, Nov 12, 2008 at 4:46 PM, Jeremy Moskovich <[EMAIL PROTECTED]> >>> wrote: >>> > We ran some benchmarks of Mach ports vs FIFOs on OSX, you can find the >>> > results in the "Performance Considerations" section of the Design doc. >>> >>> I don't see any measurements showing what typical Chrome >>> IPC traffic looks like. Without that, it's hard to interpret >>> your results. If I missed it, please point me to it. >>> >>> >>> >> >> >> >> > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Chromium-dev" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/chromium-dev?hl=en -~----------~----~----~----~------~----~------~--~---
