linux_dsm_epyc7002/arch/ia64/sn
Jack Steiner dd4cb9f8ac [IA64-SGI] - Reduce overhead of reading sn_topology
MPI programs using certain debug options have a long
startup time. This was traced to a "vmalloc/vfree" in
the code that reads /proc/sgi_sn/sn_topology. On large
systems, vfree requires an IPI to all cpus to do TLB
purging.

Replace the vmalloc/vfree with kmalloc/kfree. Although
the size of the structure being allocated is unknown, it
will not not exceed 96 bytes.

Signed-off-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2006-04-27 14:29:05 -07:00
..
include [IA64-SGI] Older PROM WAR for device flush code 2006-01-17 10:08:37 -08:00
kernel [IA64-SGI] - Reduce overhead of reading sn_topology 2006-04-27 14:29:05 -07:00
pci Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6 2006-03-25 08:49:25 -08:00
Makefile [IA64-SGI] Recursive flags do not work for selective builds 2006-01-26 13:17:34 -08:00