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authorRickard Green <[email protected]>2014-02-24 14:14:24 +0100
committerRickard Green <[email protected]>2014-02-24 14:14:24 +0100
commitce614726e9fb19b462ed41a2f020b68ef98cd532 (patch)
treec61534690567d2ad32671e85d46aedbc02041718 /HOWTO
parent15c4e79462cd890c2782fc14c9ac9b8cf99ee46f (diff)
parentb2017b91a5572f7bc2caf15082b4b105f3a3e21d (diff)
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Merge branch 'rickard/assumed-cacheline-size/OTP-11742'
* rickard/assumed-cacheline-size/OTP-11742: Introduce configure option --with-assumed-cache-line-size=SIZE
Diffstat (limited to 'HOWTO')
-rw-r--r--HOWTO/INSTALL.md5
1 files changed, 5 insertions, 0 deletions
diff --git a/HOWTO/INSTALL.md b/HOWTO/INSTALL.md
index c9f4062b83..fb18676699 100644
--- a/HOWTO/INSTALL.md
+++ b/HOWTO/INSTALL.md
@@ -274,6 +274,11 @@ Some of the available `configure` options are:
`(g)cc`
* `--enable-m32-build` - Build 32-bit binaries using the `-m32` flag to
`(g)cc`
+* `--with-assumed-cache-line-size=SIZE` - Set assumed cache-line size in
+ bytes. Default is 64. Valid values are powers of two between and
+ including 16 and 8192. The runtime system use this value in order to
+ try to avoid false sharing. A too large value wastes memory. A to
+ small value will increase the amount of false sharing.
* `--{with,without}-termcap` - termcap (without implies that only the old
Erlang shell can be used)
* `--with-javac=JAVAC` - Specify Java compiler to use