Did thrashing start? How did it impact performance?
> From: Matthew Brand <[email protected]> > > The part of the thread which resolves the problem I was having is here: > http://www.jsoftware.com/pipermail/programming/2008-December/013159.html > > My swap disk size was too low. Once I increased it as advised, J was > able to operate on 64-bit VAS data. > > On Sun, Apr 5, 2009 at 10:27 PM, Matthew Brand wrote: > > I think it allocates the memory from the virtual address space (VAS) > > which is either 32 or 64 bit depending on your machine and OS. If the > > space required by J fits in the RAM then it all happens in RAM, if it > > is larger than the RAM then the OS automatically starts page swaps. > > > > You might be interested in this thread: > > http://www.jsoftware.com/pipermail/programming/2008-December/013143.html > > > > In the end, if you have a 64-bit OS and 32GB RAM then I think that J > > will automatically use all of the RAM if required. You will need to > > set edit->configure->parameters->memory limit to >32GB though and use > > 64-bit J. > > > > > > 2009/4/5 Björn Helgason : > >> I guess you will consider 64 bit operating system > >> > >> 2009/4/5 > >> > >>> I am going to buy a Dell T5400 to run J on. > >>> > >>> This machine allows one to install 32GB of memory. > >>> > >>> What is the command that would allow me to use a large hunk > >>> of the 32GB for J? > >>> > >>> Or... > >>> > >>> Does J automatically adjust to use a certain portion of > >>> memory when it starts? > >>> > >>> thanks > >>> ---------------------------------------------------------------------- > >>> For information about J forums see http://www.jsoftware.com/forums.htm > >>> > >> > >> > >> > >> -- > >> Björn Helgason, Verkfræðingur > >> Fugl&Fiskur ehf, > >> Þerneyjarsundi 23, Hraunborgum > >> Po Box 127,801 Selfoss , > >> t-póst: [email protected] > >> gsm: +3546985532 > >> Landslags og skrúðgarðagerð, gröfuþjónusta > >> http://groups.google.com/group/J-Programming > >> > >> > >> Tæknikunnátta höndlar hið flókna, sköpunargáfa er meistari einfaldleikans > >> > >> góður kennari getur stigið á tær án þess að glansinn fari af skónum > >> /|_ .-----------------------------------. > >> ,' .\ / | Með léttri lund verður | > >> ,--' _,' | Dagurinn í dag | > >> / / | Enn betri en gærdagurinn | > >> ( -. | `-----------------------------------' > >> | ) | (\_ _/) > >> (`-. '--.) (='.'=) ♖♘♗♕♔♙ > >> `. )----' (")_(") ☃☠ > >> ---------------------------------------------------------------------- > >> For information about J forums see http://www.jsoftware.com/forums.htm > > > > > > > > -- > > http://www.ixquick.com/ > > > > Ixquick Protects Your Privacy! > > The only search engine that does not record your IP address. > > > > http://www.vivapalestina.org/ > > > > > > -- > http://www.ixquick.com/ > > Ixquick Protects Your Privacy! > The only search engine that does not record your IP address. > > http://www.vivapalestina.org/ > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
