search for: l687

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2020 May 21
2
on division of __int128 bit integer
Hi Team, I observer that division of __int128 bit is very heavy operation. It internally call a routine '__udivti3', which internally call ' __udivmodti4'. Due to it the overall performance is much much slower (almost 15 time slower than if I do it via a combination of 64-bit or microsoft '_udiv128'). Also what to know if I can directly call below routine directly from
2019 May 31
4
[libnbd] Simultaneous read and write
This is a continuation of a discussion we were having on IRC. The problems with IRC are it's not recorded and it's hard to have deep technical conversations. I hope this is a decent summary. Problem simply stated: Certain NBD servers (qemu-nbd in particular) are able to simultaneously read and write on a socket. ie. They can be simultaneously reading a request and writing the reply to