Re: [boost] NuDB: A fast key/value insert-only database for SSD drives in C++11

Subject: Re: [boost] NuDB: A fast key/value insert-only database for SSD drives in C++11
From: Olaf van der Spek (ml_at_[hidden])
Date: 2017-03-27 07:03:03

On Mon, Mar 27, 2017 at 1:14 AM, Niall Douglas via Boost
<boost_at_[hidden]> wrote:
> Your hash function (which runs per thread) only needs to be as fast as
> your storage device is at a queue depth of 1. So, taking a top of the

Why? Running that function means the core can't do other work, so I'd
think a faster function is still beneficial.

> range NVM SSD, the Samsung 960 Pro, it can write at QD1 about 50k IOPS.
> That's around 200Mb/sec/thread. Blake2b runs at 1Gb/sec, so it should

Is that Mbit/s or MByte/s? I think MByte.

-- 
Olaf