- Apps like xterm can trigger a lot of fallback rendering.
- This can lead to (annoyingly) high latencies, because you
have to wait for the block handler.
- You need a driver that doesn't directly access the front
buffer to trigger this (NV50+ nouveau for example).
- Repeatingly doing dmesg on an xterm with a bitmap font
will reveal that you never see part of the text.
- I have recieved at least one complaint in the past of slow
terminal performance, which was related to core font
rendering.
- This does sacrifice some throughput, roughly 33% slower.
Reviewed-by: Michel Dänzer <michel@daenzer.net>
Signed-off-by: Maarten Maathuis <madman2003@gmail.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
541b25038a