How to use a terabyte of RAM [LWN.net]

How to use a terabyte of RAM

Posted Mar 13, 2008 2:12 UTC (Thu) by jengelh (subscriber, #33263)
Parent article: How to use a terabyte of RAM

>We have not yet reached a point where systems - even high-end boxes - come with a terabyte of installed memory

I beg to differ, of course there is. Some SGI Altix 4700 in the datacenter:

cat /proc/meminfo 
MemTotal:     1645645808 kB
MemFree:      1149075520 kB
Buffers:          1136 kB
Cached:       62445312 kB
Active:       391650624 kB
Inactive:     34224432 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     1645645808 kB
LowFree:      1149075520 kB
Dirty:        31667888 kB
...
Hugepagesize:    262144 kB

(Log in to post comments)

How to use a terabyte of RAM

Posted Mar 13, 2008 18:39 UTC (Thu) by riel (subscriber, #3142) [Link]

I'm working on making those work better with normal VM functionality, see http://linux-mm.org/PageReplacementDesign.

You can get split VM patches on lkml and from my people page.