Bug#792258: putty: Truetype font rendering very CPU intensive

2015-08-23 Thread Colin Watson
I visited Simon yesterday with my laptop to show him the problem; it was very dependent on terminal size so he hadn't run into it as dramatically as we had (I frequently use fully-maximised terminals, as was also the case in your reproduction scenario, whereas he tends not to). After I left he

Bug#792258: putty: Truetype font rendering very CPU intensive

2015-07-13 Thread Ben Armstrong
Package: putty Version: 0.64-1 Severity: normal Truetype font rendering is very CPU intensive. This was equally the case with 0.63, so is not a regression in the latest version, but I only today got around to testing properly. When my window is maximized on a 1280x1024 display with

Bug#792258: putty: Truetype font rendering very CPU intensive

2015-07-13 Thread Ben Armstrong
Package: putty Version: 0.64-1 Followup-For: Bug #792258 I underreported actual CPU usage. Here are the exact steps to test, and comparisons between putty with Truetype, putty without Truetype (fixed), and urxvt with Truetype. I also switched Truetype fonts to match what I'm using with urxvt. -

Bug#792258: putty: Truetype font rendering very CPU intensive

2015-07-13 Thread Colin Watson
On Mon, Jul 13, 2015 at 08:08:36AM -0300, Ben Armstrong wrote: Truetype font rendering is very CPU intensive. I've noticed the same thing myself, but haven't had a chance to investigate it. Simon suggested that a useful next step would be to compare xtrace output between pterm and some other