From 3b4cbca22f473708063c157cc75a2ef411fe6480 Mon Sep 17 00:00:00 2001 From: Julian Andres Klode Date: Sun, 3 Jan 2016 17:45:26 +0100 Subject: Increase APT::Cache-HashTableSize default to 50503 This drop the hash table utilization from a high 98% to acceptable 74% on unstable, and the average bucket length from 4.6 to 1.8. This improves performance by about 5%, while increasing the size of the cache by 0.2 out of 38MB, that is 0.5%. 48481 is a nice number --- apt-pkg/pkgcache.cc | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'apt-pkg') diff --git a/apt-pkg/pkgcache.cc b/apt-pkg/pkgcache.cc index 4d8b9bc41..3c7fac642 100644 --- a/apt-pkg/pkgcache.cc +++ b/apt-pkg/pkgcache.cc @@ -94,7 +94,7 @@ pkgCache::Header::Header() VerSysName = 0; Architecture = 0; SetArchitectures(0); - SetHashTableSize(_config->FindI("APT::Cache-HashTableSize", 15013)); + SetHashTableSize(_config->FindI("APT::Cache-HashTableSize", 50503)); memset(Pools,0,sizeof(Pools)); CacheFileSize = 0; -- cgit v1.2.3