Date: Sun, 04 Jan 2015 11:53:00 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-arm@FreeBSD.org Subject: [Bug 194635] Speed optimisation for framebuffer console driver on Raspberry Pi Message-ID: <bug-194635-7-abLYRAEtQ6@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-194635-7@https.bugs.freebsd.org/bugzilla/> References: <bug-194635-7@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=194635 --- Comment #9 from Stefan Berndt <stefan.berndt@imoriath.com> --- It's no surprice one 32bit operation is faster than four 8bit operations, since computers having data bus systems wider than 8bit. Even the ~35 years old 8086 already has a 16bit wide data bus... I have got the 11.0-CURRENT on my raspberry, and made the speedtest again. (time taken to print and sroll 1 milion lines at 1440x900 in VT mode) 16 Bit per Pixel: 918 Secends 24 Bit per Pixel: 1133 Secends 32 Bit per Pixel: 903 Secends It seems there is some space for optimisations. I will show at the vt code in near future. -- You are receiving this mail because: You are the assignee for the bug.
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