From f7a632ab069e3439f312023fc599dc659c197568 Mon Sep 17 00:00:00 2001 From: Michael Tremer Date: Sun, 3 Feb 2013 21:40:16 +0100 Subject: [PATCH] build parallelism: New way to figure that out. The system will now use either the old formula, CPU cores * 2 + 1 or the amount of memory in megabytes devided by 128 (i.e. each compiler process can have 128M RAM) which ever is less. --- python/pakfire/system.py | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/python/pakfire/system.py b/python/pakfire/system.py index a9154de98..6d54d5ffa 100644 --- a/python/pakfire/system.py +++ b/python/pakfire/system.py @@ -157,14 +157,15 @@ class System(object): simulatneously when compiling. """ # Check how many processes would fit into the - # memory when each process takes up to 500MB. - multiplicator = self.memory / (500 * 1024 * 1024) + # memory when each process takes up to 128MB. + multiplicator = self.memory / (128 * 1024 * 1024) multiplicator = round(multiplicator) # Count the number of online CPU cores. - cpucount = os.sysconf("SC_NPROCESSORS_CONF") + cpucount = os.sysconf("SC_NPROCESSORS_CONF") * 2 + cpucount += 1 - return min(multiplicator, cpucount * 2) + return min(multiplicator, cpucount) # Create an instance of this class to only keep it once in memory. -- 2.39.5