The default cache setup on Ubuntu 14.04 (no explicit settings in sysctl.conf) seems to use bytes instead of a ratio: $ cat /proc/vmstat | egrep "dirty|writeback" nr_dirty 43 nr_writeback 0 nr_writeback_temp 0 nr_dirty_threshold 169462 nr_dirty_background_threshold 84731
This default is for a system with 8G memory, so are probably too small. The problem caused by this default settings is slow file copies (10 MB/sec) from a SATA hd to a USB3 (SATA disk). Using a ratio for the default settings instead of a number of bytes might allow better use of memory for machines with memory to spare. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1208993 Title: Ubuntu slows down and hangs while copying file from/to USB To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nautilus/+bug/1208993/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
