Hey All[snip]
and it was slightly better - managed to boot halfway with everything running out of memory.
I then found that this: options MAXDSIZ="(2048*1024*1024)" options MAXSSIZ="(128*1024*1024)" (and also 64MB) options DFLDSIZ="(512*1024*1024)"
worked fine but not as expected - limit reports datasize unlimited.
I've managed to crank it up as far as
options MAXDSIZ="(3568*1024*1024)"
This is for a squid proxy. Right now I have
% ps uUnobody
USER PID %CPU %MEM VSZ RSS TT STAT STARTED TIME COMMAND
nobody 132 0.0 55.6 2185016 2184992 ?? S 18Aug03 43:08.02 squid -NsY
nobody 133 0.0 0.0 864 412 ?? Ss 18Aug03 0:28.88 (unlinkd) (unlinkd)
which is pretty sweet. Which reminds me, I have to tweak my squid conf a bit to let it blow another gig or so of RAM :)
I'd kind of like a default of 512MB with the option to loosen it. Any offers as to what's the proper way to do this? All's well at the mo but it doesn't seem right.
man limits
Configging MAXDSIZ to 3500*1024*1024 did the same as 4095
Also, when the machine boots it says: CPU: Intel(R) Xeon(TM) CPU 2.40GHz (2392.25-MHz 686-class CPU) Origin = "GenuineIntel" Id = 0xf27 Stepping = 7
Features=0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,DTS ,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE> Hyperthreading: 2 logical CPUs real memory = 4025942016 (3931584K bytes)
and then later it says on the console something like: 256MB of RAM over 4GB ignored.
Seems silly to waste 256MB RAM so any hints would be appreciated here too.
How can you address more than 2^32 bytes of RAM with a 32 bit processor? :)
Intel have invented a kluge called PAE (Page Address Extensions which lets you eke a bit more out of the current Pentium architecture -- but single processes are still limited to a 4Gb address space. And the talk a while back on freebsd-current was that it has a slight performance impact as well.
David
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