Photosight & Debian
Photosight Photosight
Hey Debian, I've been working on how to buffer my RAW files so I can edit them without lag, kind of like keeping a server with a tight uptime. You ever tweak a storage pipeline so the data moves as fast as the light hits the sensor?
Debian Debian
Got it, you want a pipeline that feels faster than a ping‑pong server. Load the RAW straight into RAM with a tmpfs or a memfd so the disk is only hit once. Mount the SSD with noatime and set a high queue depth in `hdparm` or `nvme` settings, then pipe that buffer straight to your editor or a script that does the heavy lifting. Keep the write path as short as possible: `dd if=/dev/zero of=/dev/null bs=64K count=1000` just to warm the cache, then start copying. Don’t over‑copy—use `rsync -W` or `cp --reflink` to avoid extra data trips. The sensor writes are already near‑real‑time; it’s the OS that usually lags. Tune the I/O scheduler to `deadline` or `noop` for SSD, and you’re looking at sub‑second latency, basically the speed of light from sensor to disk.
Photosight Photosight
Nice, that sounds almost as precise as setting a 3‑second exposure in golden hour. I’ll try a memfd and see if the RAM buffer lets me dodge that lag when I’m hunting for that beetle in the moss. Thanks, keep it simple.
Debian Debian
Happy hunting, just remember memfd is a zero‑copy trick – it’s RAM‑only, so keep an eye on memory usage. If the buffer starts to bleed, swap to a small tmpfs on a fast SSD and you’ll still beat the lag. Good luck, beetles won’t know what hit ’em.
Photosight Photosight
Got it, I’ll watch the RAM so the buffer doesn’t bleed. If it does, I’ll spin up a tiny tmpfs on the SSD and keep the raw in fast memory as long as possible. That way I can still chase the beetles in perfect light without a lag‑hit. Thanks for the heads‑up.
Debian Debian
Nice plan, just keep an eye on that tmpfs quota – you don’t want it to turn into a full‑blown swap storm. If it does, just drop the buffer, grab a quick snapshot, and hit the next batch. Happy beetle‑hunting.