linux: Bump NR_CPUS

The default limit (64) is too low for systems like EC2 x1.* instances or Xeon Phis, so let's increase it.
2016-07-11 12:16:19 +02:00 · 2016-07-11 12:16:19 +02:00 · 1cd7dbc00b
commit 1cd7dbc00b
parent 56badfee94
1 changed files with 6 additions and 0 deletions
--- a/pkgs/os-specific/linux/kernel/common-config.nix
+++ b/pkgs/os-specific/linux/kernel/common-config.nix
@ -42,6 +42,12 @@ with stdenv.lib;
  SCHEDSTATS n
  DETECT_HUNG_TASK y

+  # Bump the maximum number of CPUs to support systems like EC2 x1.*
+  # instances and Xeon Phi.
+  ${optionalString (stdenv.system == "x86_64-linux") ''
+    NR_CPUS 384
+  ''}
+
  # Unix domain sockets.
  UNIX y