print is the system library, which uses a buffer. So if you write using print() you will less often access the disk - and hence, wait far less for it to finish.

syswrite access the disk each time you write. This prevents the clobbering you see (and makes it less likely to lose data if your program unexpectly dies), but you pay the price you see.

In reply to Re: Is print faster than syswrite? by JavaFan
in thread Is print faster than syswrite? by saurabh.hirani

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