I notice that freetype makes a lot of small reads,
resulting in a lot of SYS_read calls. I'm using freetype in an app
that runs in a ptrace sandbox, so performance is sensitive to system calls. Is there a simple way to prevent the
numerous small reads (via ft_ansi_stream_io), such as configuring
freetype to prefetch into a large buffer when reading, and making it
assume that font files never change? Will I need to make some configuration changes or do I need to make code changes? Thanks!