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Is there any OS-level (Linux) speedup when writing one fixed byte buffer to many file-descriptors? When writing many buffers to one file-descriptor one can use writev(2), so I wonder if there’s any analogue to this or it must be done by multiple sys-calls.
I know no such syscall on Linux. Their exhaustive list is given in the syscalls(2) man page.
And I won’t bother that much. For file access, the real bottleneck is the disk…