Re: How to use Instruments to profile network I/O?
Re: How to use Instruments to profile network I/O?
- Subject: Re: How to use Instruments to profile network I/O?
- From: Jens Alfke <email@hidden>
- Date: Mon, 29 Oct 2012 15:52:49 -0700
On Oct 29, 2012, at 3:48 PM, Wim Lewis < email@hidden> wrote: If the simulator is accurate enough for this, then you might be able to use dtrace (via Instruments, or directly) to log that kind of activity.
I’d rather avoid the simulator, because its performance characteristics overall are very different from the real device. (There’s also a lot of JSON parsing and SQLite storage involved, both of which are many times slower on a device than in the simulator.)
Also, I’ve never used custom dtrace stuff in Instruments. It’s difficult enough to understand the regular built-in stuff :/ Isn’t this the sort of thing Instruments should be able to profile out of the box?
—Jens |
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