Viewing profile — rzezeski

I wrote a detailed walk-through of the illumos syscall handler back in 2016. It's missing the updates around KPTI (meltdown mitigation), but other than that the mechanisms should b…

Probably more to do with the fact that everything is moving towards virtualization. Oftentimes these NICs dole out VFs directly to VMs via SR-IOV, in which case I imagine the NIC c…

> During those tests, we noticed the machines were randomly freezing after some time, so we decided to upgrade the firmware of the network cards, Reminds me of the various i40e Tx …

You just figured it out.

That's a good question. I should have mentioned that in the post perhaps. The reason I initially ran vmstat was just to make sure my dev machine was "zeroed out". Recently my kerne…

According to POSIX.1b RT signals are used for other features defined in .1b. An excerpt from "POSIX.4 Programmers Guide": > So far, we've talked about real-time signals sent by the…

All kernels do not use the same libc. In fact, Linux is different in the fact that it doesn't ship a libc with the kernel. Illumos, the OS I investigated, goes by the philosophy th…

Author here, I won't get to it today but I would like to try the method you describe. I realize that benchmarking is a very tricky thing having followed Brendan Gregg's work the la…

Hi, author here. My align_2 implementation is indeed very naive. Part of that was to show just how much overhead a naive implementation could add, in this case 3 orders of magnitud…

Not only that, why make every user reimplement the same resolution strategies? Or make Basho dev's reimplement them for each official client? You'll increase the chance for bugs or…

There may be more to the situation. I wonder if Normalcy Bias also played a role in Air France 447.

Replicas (or as you put it, ring replication) is critical, and Riak very much has replicas. What it doesn't have in it's open source version is multi-ring replication (cross DC) wh…

I agree in general with the sentiment but don't like rule of an absolute # of slides. To this day one of the best presentations I've ever seen had 500+ slides and is an example of …

I work at Basho. Specifically I've been doing a lot of work on Riak Search lately. I absolutely agree that the Search documentation is underwhelming and could use some major love. …

If we are talking about performing range queries on an index then Riak already has it in the form of Riak Search. In 1.0 this is also supported by secondary indices. If we are talk…

I know nothing about Switft so I'll keep my comments strictly related to Luwak. Luwak preforms really well as a large object store...up to a point. I've personally seen latencies o…

You are performing a GET for the same key each time? Don't quote me on this but I took a quick glance at the code and it looks like all gets are [currently] serialized at the vnode…