I moved many .MKV movies to my new Mybook live (green light).
When I try to play a 11 GB .mkv file with bsplayer from the nas it takes a very long time to start.
It even gives a error message after some time ‘cannot open file’.
I observed with procmon that bsplayer is doing about 300.000 reads with length 1 to determine the end of the movie.
My firewall tells me that data is coming in at 235k / sec. which is ridiculous slow.
When the movie starts playing, bsplayer starts reading in chunks of 65k, which come in at 2 MB/sec.
When a copy the file speed is even about 35 MB second.
Why is Mybook soo slow on short reads ?
It cannot be the network. The switch / router / PC’s are all gigabyte. I have copied the file to an other PC on the same switch in the network and then played the file over the network. I then takes only 1-2 seconds to start.
I observed with procmon that bsplayer is doing about 300.000 reads with length 1 to determine the end of the movie
It’s the CLIENT (bsplayer) that determines the read length, not the MBL.
Reading a file at 1 byte per request is why it’s so slow. That will KILL just about any network performance because 99% of the traffic is overhead. bsplayer sounds like it is BRUTALLY inefficient.
If bsplayer is also doing sequential 1byte reads on a PC, then presumably the PC is precaching that information which will increase performance somewhat, but not much, because it’d be easily CPU-bound.
35 megabits per second copy seems pretty slow, too. I can get 220 to 250 megabits per second between my PC and MBL…
