mkaufmann

12 ms·

1.
Controlling Memory Usage by Forcing Release of Freed Memory(engineering.tableau.com)
2 points by mkaufmann 6y ago|0 comments
2.
by mkaufmann 7y ago
Hyper, which was created by the same group, can now be used for free with the Tableau Hyper API https://help.tableau.com/current/api/hyper_api/en-us/index.h... I especially like the super fast CSV scanni
3.
by mkaufmann 8y ago
I've been following data Artisans for a while and love their tech! It seemed that being not from silicon valley made it more difficult for them to gain traction. One part of the acquisition is the integration of Alibaba's in-house
4.
Kodi 17 released with new UI(kodi.tv)
1 points by mkaufmann 10y ago|0 comments
5.
by mkaufmann 11y ago
Damn these numbers! :D Regarding your correction. The percent value is now too low (.002%). I think you used the factor value of ~0.002 as percentage. So you probably meant 0.2% which would be close to my number. Using your numbers 30000&#x
6.
by mkaufmann 11y ago
I think you are mixing the number up. I could not find a source that said anything close to the 1.7 million metric tons per day emitted by the leaking well you used for your calculation. The leak is emitting 1247 metric tons of CO2e per hou
7.
by mkaufmann 11y ago
I corrected my calculation (using the correct 25 factor for metric tons). Thanks for the hint!
8.
by mkaufmann 11y ago
I corrected the analysis, thanks for the clue, this paints a completely different picture. I corrected the analysis
9.
by mkaufmann 11y ago
On the topic of what went wrong I think this LA weekly[3] article is a much better source. The main problem why the well can't be shut down is that the security valve was removed about 40 years ago: "He pointed out that the valve
10.
by mkaufmann 11y ago
It does not really compare, I guess thats also why its not mentioned. The whole premise of the paper is that data can be analyzed in situ. That means loading from its original place in the original format without any previous transformation
11.
by mkaufmann 11y ago
The article lacks a description of which specific form of pollution is compared. When talking about pollutants is important to keeps the following points in mind: - Is the pollutant effecting health? - Is the pollutant effecting climate cha
12.
by mkaufmann 11y ago
For x264 that is true, HEVC which is also mentioned is much slower. For a 4k source transcoding can take more than a second per frame. For a normal movie this can quickly result in encoding times of more than a day. Another problem is that
13.
by mkaufmann 11y ago
I just did this page. The page is indexed. When I look for the search term "Update this was posted to Google on Friday the 17th of July, 2015. Monday, the 20th" the page is shown. Trying to find any of the other search strings in
14.
by mkaufmann 11y ago
I like to use -Wpedantic for my own projects to keep the code clean and it helped my well. Its not included in -Wall and -Wextra.
15.
by mkaufmann 12y ago
I would be interested why the go implementation is so much slower than the Java implementation. The algorithms behind both implementations seem to be exactly the same and both are garbage collection languages. There probably has to be a stu
16.
by mkaufmann 12y ago
Yes because the recovery menu won't be accessible than (which is needed to replace the sticky key executable) The settings can be changed with bcdedit: bcdedit /set {default} recoveryenabled No bcdedit /set {defau
17.
by mkaufmann 12y ago
Driving on a german highway with autonomous cars has already been done as already as 1996 by Mercedes[1]. But same as with the google cars they used very special hardware which would be too expensive for production use. The current challeng
18.
by mkaufmann 12y ago
The changes make all the difference. Your argument was that columnization and thus storing each native type in a data record in seperate columns brings a performance benefit. By removing the specialisation of Pair and Option which save the
19.
by mkaufmann 12y ago
Addressing your points: 1. In my comment I acknowledge that there are space savings with types that include padding. I don't understand why you imply in your answer that I didn't understand this point. Regarding my comment about n
20.
by mkaufmann 12y ago
While I like the construction of the column store and the corresponding API. The claims of the author don't really make sense: > "... columnarization, a technique from the database community for laying out structured records in
21.
by mkaufmann 12y ago
Just for fun I tried to estimate the performance characteristics of this service. My initial assumption is that the 2.2M pages per ~18h are the main workload. This is also supported by the chart at the bottom, outside of the 18h timespan th
22.
by mkaufmann 12y ago
Concerning your critique of the in your opinion overly hard scientific review process. According to her blog the paper was rejected because: "Reviewers at conferences [...] have been very skeptical, and pressed us multiple times to pro
23.
by mkaufmann 12y ago
Impressive acceleration time! The new record for accelerating from 0-100 km/h of only 1.785 seconds was just set a few days ago[1]. The car required less than 30 meters to accelerate to this speed. Of course it was only a prototype car
24.
by mkaufmann 13y ago
On a related note there is a recently published paper exploring how to load CSV data into a database efficiently[1]. The authors get a loading throughput (including index creation!) of over 1.5 GB/S with multithreading. They don't
25.
by mkaufmann 13y ago
Damn ok, so I also missed that opportunity. Great find!
26.
by mkaufmann 13y ago
Great article, I am really eager to see the solutions in github. I guess there won't be many with c++ solutions. I only found the challenge two days before the end. My goal with the challenge was not to get the best solution, but rathe
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by mkaufmann 14y ago
See my comment here [1] why this is an pretty weak argument- [1] http://news.ycombinator.com/item?id=5125902
28.
by mkaufmann 14y ago
I am not a social media expert, but two points why comparing trending topics in France to the US is very difficult (without any statement on which country is more racist): 1. Twitter is much more mainstream in the US than in France and othe
29.
by mkaufmann 14y ago
A tip to avoid the headphone port: Either use the HDMI port or try a usb soundcard http://elinux.org/RPi_VerifiedPeripherals#USB_Sound_Cards
30.
by mkaufmann 14y ago
This. Also the applicability of the optimization rule depends a lot on the context. It is typically stated for a complete project. Writing a library is different from that. Depending on the kind of library you write, it could be that it is

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