On Friday, 15 July 2016 at 17:04:35 UTC, Andrei Alexandrescu
wrote:
On 07/15/2016 12:31 PM, tcak wrote:
Do you know about --profile=gc?
1. Never worked for me in a multithreaded program.
Could you please give it another look. Walter fixed it
relatively recently.
Hmm, I will check it out. Haven't tested it for a while.
2. I am not able to retrieve that data on runtime by another
application
to see close to real-time statistics.
I know that profiling data is kept in memory, and written to
file at the
end of program. Instead it could write it to a file descriptor
and not
care about whether a program is reading it. Let the kernel
handle that
part.
Wouldn't that make things too slow to be practical? The other
profilers I know of also keep counters in memory.
Andrei
If it is about speed, we can still use a public shared memory for
that purpose. So, statistical messages can be written in shared
memory, and other program reads from that to get those messages.
A suitable communication protocol can be implemented in way. At
the end, our purpose is to provide powerful toys to ease
development.
