Hector Martin

Realtime Linux patchset: because I damn well deserve to be able to compile 3 packages in parallel while also transcoding two 1080p episodes yielding a load average of 37 on a 5 year old laptop and *still* get 8ms latency glitchless physical piano modeling synthesis.

Was thinking of designing my next gen guitar looping pedal around a cellphone CPU and Linux. Worried I won't be able to maintain my 800 us end-to-end latency though. Current gen is 66 MHz AVR32 and FreeRTOS.

800us is pretty extreme; at that point you depend a lot on the audio hardware. It's probably possible on RTLinux but you might end up having to patch drivers and roll your own usermode framework which might defeat the purpose of using Linux.

Yeah. I have a very low opinion of ALSA. Was thinking I'd have to write my own minimal I2S driver. I just dream of being able to write/test the looper in a sane userland, and have access to good USB disk drivers and filesystems. Doing everything myself takes a lot of effort.