zero-copy

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Is zero-copy UDP packing receiving possibly on Linux?

I would like to have UDP packets copied directly from the ethernet adapter into my userspace buffer Some details on my setup:[详细]

2023-04-05 05:27 分类：问答
Does Zero-copy exist in Windows OS?

Reading this zero copy article, Does Zero-copy exist in开发者_如何学Go Windows OS (server 2003, 2008, 2008 R2) ?Yes, it is supported via the TransmitFile API.[详细]

2023-03-28 20:43 分类：问答
Linux splice() returning EINVAL ("Invalid argument")

I\'m trying to experiment with using splice (man 2 splice) to copy data from a UDP socket directly to a file.Unfortunately the first call to splice() returns EINVAL.[详细]

2023-03-28 07:47 分类：问答
vmsplice() and TCP

In the original vmsplice() implementation, it was suggested that if you had a user-land buffer 2x the maximum number of pages that could fit in a pipe, a successful vmsplice() on the second half of th[详细]

2023-03-14 03:16 分类：问答
With sendfile(), is it possible to tell when in_fd is at EOF?

Reading through the man page of the Linux system call sendfile, I am wondering whether it is possible for the calling program to know when in_fd is at EOF. Presumably, this could be signaled by a retu[详细]

2023-01-16 08:39 分类：问答
Determining whether a readable file descriptor is the read end of a pipe

I would like to use splice to zero-copy data from STDIN_FILENO to a file descriptor (which could be to a regular file, char or block device, FIFO, or anything that can be opened with open). In order t[详细]

2023-01-15 06:31 分类：问答
Which file systems support splicing via Linux's splice(2)?

The man page for the splice system call says that splice may f开发者_C百科ail and set errno to EINVAL if:[详细]

2023-01-15 06:20 分类：问答
Terminology: opposite of "zero copy"?

We\'re benchmarking some code that we\'ve converted to use sendfile(), the linux zero-copy system call.What\'s the term for the traditional read()/write() loop that sendfile() replaces?I.e., in our re[详细]

2022-12-28 23:51 分类：问答
DNF:dnf二区能不能转一区？

ourlove2008 20开发者_开发技巧22-06-07 18:46 不能，如果重新在一区玩个号那么必须从一级开始玩，而且你也不能把你二区的号的东西转到一区的号，建议楼主最好不要重新玩。[详细]

2022-12-17 20:18 分类：问答