drewg123

42 ms·

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by drewg123 4y ago
No, the entire catalog cannot fit on a single server. There is a Netflix Tech Blog from a few years ago that talks about this better than I could: https://netflixtechblog.com/content-popularity-for-open-conn...
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by drewg123 4y ago
Not much tuning needed to be done. The little that was is mentioned in the talk, and was basically to set NPS=1 and to disable DLWM, in order to be able to access the full xgmi interconnect bandwidth at all times, even when the CPU is not
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by drewg123 4y ago
This talk was given roughly 4 months ago. CX7 was not available yet. I'm looking forward to testing on them when we get some. We looked at Chelsio (as T6 was available well before CX6-DX). However, the CX6-DX offers a killer feature
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by drewg123 4y ago
Responding to a few points. We do indeed use the OS page cache. The hottest files remain in cache and are not served from disk. We manage what is cached in the page cache and what is directly released using the SF_NOCACHE flag. I believe
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by drewg123 4y ago
As I said in a parallel comment, this is a testbed platform to see what problems we'll encounter running at these speeds. Production hosts are single socket, and can run at roughly 1/2 this speed. I regret that I've crashed
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by drewg123 4y ago
To be honest, this has much more to do with Randall Stewart's RACK TCP, and his team's obsession with improving our member's QoE. Ironically, this costs a lot of CPU as compared to normal TCP (since it is doing pacing, limit
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by drewg123 4y ago
Author here. AMA
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by drewg123 4y ago
This is a testbed to see what breaks at higher speed. Our normal production platforms are indeed single socket and run at 1/2 this speed. I've identified all kinds of unexpected bottlenecks on this testbed, so it has been worth
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by drewg123 4y ago
Author here... Yes, most of this work was done by me, with help from a handful of us on the OCA kernel team at Netflix (and external FreeBSD developers), and our vendor partners (Mellanox/NVIDIA). With that said, we are standing on the
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by drewg123 4y ago
English is so ambiguous that the title made me think that the professor himself had crashed into the ocean. Saying "Alien Tech That Crashed in.." would clear things up, but I guess it would be too long?
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by drewg123 4y ago
It works fine using the pdf viewer builtin to Linux firefox (running on FreeBSD-current).
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by drewg123 4y ago
I wonder if he wound up in single user mode using /bin/sh on his first boot, and then after installing stuff, he rebooted at some point and would up with a proper shell?
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by drewg123 4y ago
The response from Starlink[0] was pretty amazing. I love this quote: "we want to congratulate Lennert Wouters on his security research into the Starlink user terminal – his findings are likely why you're reading this, and help us
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by drewg123 4y ago
I signed up for the Disney bundle recently, mostly because it was free with my Amex card. So I'm counted as 3 subscribers (even though I've never bothered to sign into ESPN+), and I provide $0 revenue to Disney. I think the lesso
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by drewg123 4y ago
I agree 100%, but I'd say the FSD beta drives like a 75 year grandparent that's never held a license. It is mostly over-cautious and is constantly holding up traffic, due to being shy to pull out, make left turns, etc. But its
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by drewg123 4y ago
Many EVs support a regen based "1 pedal" driving mode, where lifing from the accelerator slows the vehicle rapidly. This leaves brakes for emergency stopping and parking. My 2017 Tesla MX-100D doesn't quiet have this (you n
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by drewg123 4y ago
This comment is spot on. Configuring the most expensive EV I could think of (Porche Taycan Turbo S) with all the options I could easily add comes to about $225K USD. That leaves ~$30K USD for a solar install to match the price of the Ligh
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by drewg123 4y ago
For those wanting a solar EV that costs far less than 250K euros, Aptera sounds promising and is planning a $26K USD price point. https://aptera.us/vehicle/
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by drewg123 4y ago
720Gb/s actually. Those last 20-30Gb/s were pretty hard fought :)
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by drewg123 4y ago
I'd like to go back and get some of those appliances. Today's washing machines are terrible.
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by drewg123 4y ago
Why did Turbo Modula-2 produce a binary that was 3x as fast as Pascal? Is M2 more suitable for aggressive optimization? Was the M2 compiler just better, with the tradeoff of a much longer compilation time (9x)? M2 seems like a forgotten l
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by drewg123 4y ago
My family bought a diesel IH Scout in the 70s. Its probably the worst car I've ever ridden in. 0-60 in an afternoon with a tailwind, horrible suspension, noisy, etc. It was replaced by an early 80s Jeep Cherokee, which was a huge up
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by drewg123 4y ago
And the FreeBSD boot loader uses forth scripting: https://www.freebsd.org/cgi/man.cgi?loader(8) (lua support was recently added as well)
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by drewg123 4y ago
I have an undergrad from a large, anonymous state school, and a masters (earned in 1993) from a smaller, regionally prestigious private engineering school. I honestly don't believe that I learned anything useful when getting my MS. Th
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by drewg123 4y ago
I pre-ordered this spring. The pre-order payment due is just $100. I've wasted more than that on plenty of dumber things in my life. If they can pull this off, it will be money well spent and I'll be thrilled to have one of the
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by drewg123 4y ago
The key idea is that this car is very efficient, due to its incredibly low Cd of 0.15, and lightweight construction. That enables stuff that other EVs can't do. Like 1,000 mile range, and adding up to 40mi / day via its on-boar
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by drewg123 4y ago
My 4 year old Tesla has had several unscheduled service visits. None of them were for anything EV related. All of them were for Tesla-specific or "new car builder" things. Eg, main infotainment replacement (from ancient arm to
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by drewg123 4y ago
I have Crohn's and I remember my pediatrician as being very willing to prescribe meds at the drop of a hat. I still remember the oral antibiotics I had as a little kid in the 70s. So this would not surprise me. A lot of the theories
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by drewg123 4y ago
She wasn't clueless. She just said that in her experience, nobody actually takes her advice to exercise and change their diet seriously and they wind up on statins.
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by drewg123 4y ago
I'm early 50s. In my mid 40s, I had terrible cholesterol and was obese. I have a family history of heart disease, and I got scared. So I started exercising (running, then switched to alternating rowing and lifting) and lost 70lbs an

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