On 13 Apr 2011, at 08:25, Jorge Gonzalez wrote:
It's plausible that multiple fire-ups of the same program would
wind up with identical pages, if no memory allocation ever depends
on timing or anything other than static configuration.
Could be, but lots of perl modules defer their load
On 12 Apr 2011, at 13:51, Jorge Gonzalez wrote:
Rather, it needs to load all the stuff and _then_ fork, so that the
stuff is identical and shared.
You are right in this case: the pages would be shared just after the
fork, but would probably start to get copied individually for each
On 4/11/2011 8:54 AM, Jorge Gonzalez jorge.gonzalez-at-daikon.es |Catalyst/Allow to home|
wrote:
You can be assured that it's being done that way. Certainly all modern operating systems
do Copy-On-Write on memory pages, which means that several processes with a common set
of code will share
On 11 Apr 2011, at 14:07, John M. Dlugosz wrote:
Looking at the server's processes, I see three of script/
myapp_fastcgi.pl, which I suppose co-inside with the Apache
configuration option where I said to start 3 fastcgi processes to
handle this app.
WebMin tells me size, which can't be
El 12/04/11 12:58, John M. Dlugosz escribió:
On 4/11/2011 8:54 AM, Jorge Gonzalez jorge.gonzalez-at-daikon.es
|Catalyst/Allow to home| wrote:
You can be assured that it's being done that way. Certainly all
modern operating systems do Copy-On-Write on memory pages, which
means that several
You are right in this case: the pages would be shared just after the fork, but would
probably start to get copied individually for each process again as soon as the process
starts doing something useful. For perl, which works as some kind of JIT compiler, the
script executable code is just
Looking at the server's processes, I see three of script/myapp_fastcgi.pl, which I suppose
co-inside with the Apache configuration option where I said to start 3 fastcgi processes
to handle this app.
WebMin tells me size, which can't be the actual load of server RAM needed since it
doesn't
You can be assured that it's being done that way. Certainly all modern
operating systems do Copy-On-Write on memory pages, which means that
several processes with a common set of code will share much of it. This
is not being done by Apache/fastcgi/Catalyst, but by the very operating
system
