drewg123

39 ms·

571.
by drewg123 4y ago
This car takes it to an entirely new level. I've never had to use heated socks in any other car I've owned, including horrible old 80s economy cars I owned in Buffalo, NY.
572.
by drewg123 4y ago
My Tesla Model X 100D looses 25-40% of range in the winter (and by "winter, I mean 20-50F, as I live in Virginia). This is partially due to resistance heating, and the range is better if you're somehow able to live with keeping
573.
by drewg123 4y ago
"I have never been able to kill stupid things before they cause damage" One of the most important things an organization can have is a "no man". A project that I was involved in when I worked at Google was completed o
574.
by drewg123 4y ago
I had no idea that HoD was not new. I gave up on waiting for new books George RR Martin when he started writing for HBO and seemed to give up on novels. It was at least new to me..
575.
by drewg123 4y ago
This may be an unpopular opinion, but I wish networks/services would stop trying to make safe bets with new screen adaptations of classic books and movies. Some of the worst TV I've watched this year has been adaptations of class
576.
by drewg123 4y ago
* Use any voice assistant and choose to make it default * I would so love to have Google Assistant rather than Siri on my iPhone. GA is so much better hands-free / eyes-free. Being able to say "OK Google ...." when driving,
577.
by drewg123 4y ago
The funny thing is, it may help their sales. I'll buy 3 Apple TVs and 1 iPad just as soon as I can load apps of my choice.
578.
by drewg123 4y ago
Background: I've been a *nix user since 1989, and have used focus-follows-mouse and a few window-management hot key combos for the last 33 years. I've managed to use those keys in every *nix WM / DE that I've used (twm
579.
by drewg123 4y ago
This table is not well suited for that, but it did get me interested in re-structuring it. Thanks for the suggestion!
580.
by drewg123 4y ago
I disagree. RAM is still a huge bottleneck. Even when there is sufficient bandwidth, latency is a performance killer. I just spent most of the weekend trying to optimize a hash table lookup which is one of our biggest sources of cache mis
581.
by drewg123 4y ago
6000 employees? That blows my mind. What do they all do? Is it mostly sales, to convince restaurants to sign up?
582.
by drewg123 4y ago
One of the things I'm seeing in your post is basically a lack of negatives. But what about positives? Do you actually like your job? If not for that list, would you stay or be out the door in a heartbeat? I'm a lifer at Netfl
583.
by drewg123 4y ago
My cholesterol levels beg to differ. When I became vegan, my LDL/HDL ratio dropped from 1.9 to 0.8, triglycerides dropped by 35%. My doctor told me she's never seen such a turnaround without statins.
584.
by drewg123 4y ago
I'm vegan. I became vegan because my partner is vegan, and I started eating vegan food (like Beyond) when I was at her house, out of respect. I gradually transitioned to a non-strict vegan diet for health reasons (my Dr. said she&#x2
585.
by drewg123 4y ago
The cynic in me makes me wonder if they're hoping that by using the Tesla charger, they are putting themselves in a better position to be acquired by Tesla.
586.
by drewg123 4y ago
Couldn't Apple just enable Activation Lock for the IMEI or serial numbers of the stolen devices? Maybe the retailers are not able to report the serial numbers / IMEIs of stolen devices back to Apple?
587.
by drewg123 4y ago
Possibly. Remember the goal is to keep data read from the drives unmapped in the kernel address space, and hence never accessed by the CPU for efficiency. So we'd have to give up, or at least alter, zfs to not do checksums each time
588.
by drewg123 4y ago
Those are good ideas. The solution I was thinking of would be to do replication of the most popular content to both nodes.
589.
by drewg123 4y ago
Back of the envelop guess is ~400Gb/s. Each node has enough memory BW for about 240Gb/s, then factor in some efficiency loss for NUMA..
590.
by drewg123 4y ago
I don't have any visibility into how many DOA NICs we have, so I can't say that Mellanox is better or worse at that point. But I do see most NIC related tickets for NIC failures once machines are in production. In general, we&#
591.
by drewg123 4y ago
I skimmed the paper, but I could not determine what TCP congestion control method they were testing against. Given the stall time, I expect that it was not BBR (which is the congestion control used by QUIC). If you improve TCP's cong
592.
by drewg123 4y ago
They are generated by a local shell script that uses the same helpers (stackcollapse*.pl, difffolded.pl). Our revision control says the script was committed by somebody else though. It existed before I joined Netflix.
593.
by drewg123 4y ago
Arm64 is very competitive. As you can see from the slides, the Ampere Q80-30 is pretty much on-par with our production AMD systems. Yes, I've spent lots of time in the AMD BIOS over the years, and lots of time with our AMD FAE (who is
594.
by drewg123 4y ago
What nobody talks about is the lack of server-side offloads for QUIC. Things like TSO, LRO, and even hardware offloaded kTLS. Without those offloads, I estimate I'd be lucky to get 200Gb/s out of the same Netflix CDN server hardw
595.
by drewg123 4y ago
Indeed. YT has a much different problem, which is to determine which video is going to go viral, and then transcode it into popular formats when it does. In comparison, we pre-transcode everything to exacting standards, so all our CDN has
596.
by drewg123 4y ago
Yes, I'm looking forward to CX7. And to other pcie Gen5 NICs!
597.
by drewg123 4y ago
These are actually fantastic questions. Yes, the RAM is mostly used by content sitting in the VM page cache. Yes, you could go NVME->NIC with P2P DMA. The problem is that NICs want to read data at once TCP mss (~1448b) and NVME really w
598.
by drewg123 4y ago
At a very basic microbenchmark level, I use stream, netpef, a few private VM stress tests, etc. But the majority of my testing is done using real production traffic.
599.
by drewg123 4y ago
Were you assuming they were giant FPGA based NICs..? They are production server NICs, using asics with a reasonable power budget. I don't recall any failures.
600.
by drewg123 4y ago
We use ZFS for root, but not content. For content we use UFS. This is because ZFS is not compatible with "zero-copy" sendfile, since it uses its own ARC cache rather than the kernel page cache, meaning sending data stored on ZFS

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