4 ms·
Ah wish I knew this last week. Writing Xubuntu to my USB took something like 2900 seconds from a Mac.
by djent 10y ago
Ah wish I knew this last week. Writing Xubuntu to my USB took something like 2900 seconds from a Mac.
- josteink 10y agoUsually just specifying a reasonable blocksize works for me. bs=1m or so. Without that it does literally take hours. I suspect the default blocksize is really small (1?) and combined with uncached/unbuffered writes to slower devices, it just kills all performance outright. Edit: answered! https://news.ycombinator.com/item?id=13350002 https://news.ycombinator.com/item?id=13350002
- muterad_murilax 10y agoIn other words, about 48 minutes for a ~1.2 GB file?
- isostatic 10y agoAbout 3mbit/second, or 400kbytes a second. I'd expect something 50-100 times faster.
- NamTaf 10y agoPer the sibling comments, you just need to specify a sane block size. dd's default is really low and if you experiment a bit with 2M or around that you'll get near-theoretical throughput. NB: Remember the units! Without the units you specify it as bytes or something insanely small like that. I've made that mistake more than once!