Interesting chair. Bit pricy, but I tried it and like it!
–jeroen
Posted by jpluimers on 2018/09/17
Interesting chair. Bit pricy, but I tried it and like it!
–jeroen
Posted in LifeHacker, Power User | Leave a Comment »
Posted by jpluimers on 2018/09/17
The missing of [WayBack] Arjen Kamphuis (@ArjenKamphuis) | Twitter, made me revisit some of his past videos. In addition, I made the list quite a bit longer, as I was not aware he made so many presentations.
Many, but not all, of these videos are listed no YouTube video channel of Arjen Kamphuis.
Be sure to read the book Information Security for Journalists – Gendo he co-authored with Silkie Carlo.
–jeroen
Posted in Power User, Security | Leave a Comment »
Posted by jpluimers on 2018/09/17
A while back, Thomas Mueller assumed that Satellite internet could be an alternative for rural areas in Germany: [WayBack] > Auch der Internet-Anschluss über Satellit funktioniere allenfalls quälend langsam <Das kommt mir aber ziemlich seltsam vor… – Thomas Mueller (dummzeuch) – Google+ as a response to [Archive.is] Telekom-Posse: Wirt soll eine Million Euro für schnelles Internet zahlen – WELT.
So I summed up what throttling to 600 (optimistic) or 1000 millisecond (realistic) latency on a 10 megabit connection means: awfully slow for interactive use.
The problem with satellite based internet is latency times: 500 milliseconds is the physical minimum for a geostationary connection. It can easily double with overbooked connections (default with consumer DSL/Cable/Fiber).
The latency combined with the very chatty nature of most applications, is the real killer for your experience.
Compare that to my speeds 2 years ago: https://wiert.me/2015/10/05/fiber-to-fiber-speed-beats-cable-to-fiber-speed-by-a-factor-2-all-three-internet-connections-are-in-the-same-house/
I just did a comparison with the fiber connection at my brother (who lives some 20 miles away) and work too and re-checked the fiber connections in the article (they stayed the same).
- fiber 1 = home
- fiber 2 = home
- fiber 3 = brother
- fiber 4 = work
Traceroute results:
- fiber 1 to fiber 2: 5 milliseconds
- fiber 3 to fiber 2: 8 milliseconds
- fiber 4 to fiber 2: 4 milliseconds
- cable to fiber 2: 10 millseconds
- ADSL to fiber 2: 15 millseconds
With these, you can have > 50 connections per second.
Satellite gives you 2 connections per second if you are lucky.
The blog page takes ~160 web requests.
- DOM content load ~ 1.0 seconds
- Full load finished ~2.2 seconds
- Render finished ~5.0 seconds
I throttled it down to Satellite speed:
- 10 megabit downstream
- 2 megabit upstream
- 600 millisecond latency
Now this is the load:
- DOM content load ~ 2.9 seconds
- Full load finished ~9.9 seconds
- Render finished ~10.0 seconds
Increasing the latency to 1000 milliseconds brings this:
- DOM content load ~ 4.2 seconds
- Full load finished ~11.8 seconds
- Render finished ~14.9 seconds
Fully loading gmail.com or booking .com with 1000 millisecond latency takes over 30 seconds.
References:
Posted in Internet, Power User | 2 Comments »
Posted by jpluimers on 2018/09/17
Steps to try first:
%windir%\Windowsupdate.log
(on my system, it did not reveal anything special)sfc /scannow
(which takes a few minutes to run)%windir%\System32\cleanmgr.exe
(ensure to clean up update files: it can take tens of minutes to run)Appwiz.cpl
try a “Repair” of the Office 2013 installationAppwiz.cpl
)
The KB3172614 should also alleviate long during (dozens of minutes) high CPU usage of svchost.exe and TiWorker.exe when searching for Windows updates.
Posted in Office, Office 2013, Power User, Windows, Windows 8.1 | Leave a Comment »