Paul Jackson a écrit :
Linus wrote:
Maybe you'd be willing on compromising by using a few kernel boot-time
command line options for your not-very-common load.
If we were only a few options away from running Andy's varying load
mix with something close to ideal performance, we'd be in fat city,
and Andy would never have been driven to write that rant.
I found hugetlb support in linux not very practical/usable on NUMA machines,
boot-time parameters or /proc/sys/vm/nr_hugepages.
With this single integer parameter, you cannot allocate 1000 4MB pages on one
specific node, letting small pages on another node.
I'm not an astrophysician, nor a DB admin, I'm only trying to partition a dual
node machine between one (numa aware) memory intensive job and all others
(system, network, shells).
At least I can reboot it if needed, but I feel Andy pain.
There is a /proc/buddyinfo file, maybe we need a /proc/sys/vm/node_hugepages
with a list of integers (one per node) ?
Eric
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