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Andy Davies › Comments

Andy Davies
Re: How to: Create an ‘all-in-one’ WebPageTest Private Instance -
"I think that's the default you get when Apache has no config, so I'd look at your Apache config again." - Andy Davies
Andy Davies
Re: Implementing Sparkicons -
"You could do that with CSS attribute selectors e.g. a[href$=".png"]:after { content: url(url-of-relevant-icon) } but you'd need to do it for each file type, and then will be some issues with inferring the content from the filetype." - Andy Davies
Andy Davies
Re: The pros and cons of using R packages for teaching -
"I put language in quotes as I meant more than just the basic syntax of R (which is pretty simple really), I guess what I mean is the whole ecosystem, there are definitely packages and methods where the API could have been better designed. I've got a few R books but thanks for the list will check it out." - Andy Davies
Andy Davies
Re: The pros and cons of using R packages for teaching -
"I'd describe myself as an R dabbler - I specialise in web performance but increasingly want to apply statistical approaches to the data I generate - and I find R one of the most powerful and frustrating toolsets around. Suspect some of my issues are down to the 'language' itself, some down to the documentation available for it and some due to my limited stats knowledge. Often I know what I want to achieve but finding the appropriate way of doing it in R can be time consuming, for instance the other day I wanted to reshape some data and it took me ages to find I needed to use melt and cast. There's a real opportunity for some one to write a guide to using R in everyday stats, rather than just being a stats tool written by statisticians for statisticians (aware that might seem harsh) Often wonder whether I would feel more comfortable doing my stats in Python as I write code in it too." - Andy Davies
Andy Davies
Re: UK liable for Scotland’s banks in a future crisis -
"Doesn't the M8 count? Also my understanding are the Scottish motorways are the responsibility of the Edinburgh administration, so it's down to them to solve - isn't that what devolution is about?" - Andy Davies
Andy Davies
Re: Adding iOS agents to a WebPagetest Instance - Andy Davies -
"I've added the following to createWebView: urlCache = [[NSURLCache alloc] initWithMemoryCapacity:4*1024*1024 diskCapacity:10*1024*1024 diskPath:nil]; [NSURLCache setSharedURLCache:urlCache]; and then I release it in destroyWebView [urlCache release]; urlCache = nil; I've still got some funny timings in the repeat view though" - Andy Davies
Andy Davies
Re: Adding iOS agents to a WebPagetest Instance - Andy Davies -
"Hi Mick, Yes, I've got it to work with xcode 5 - there are still lots of warnings (partly due to the undocumented APIs it uses) I've shared the repository that I keep my copy in so you can look at that. You can access the settings via the setting menu in iOS Andy" - Andy Davies
Andy Davies
Re: A proxy for first paint and why I love Velocity -
"Do we know what actually gets painted during first paint e.g. are browsers just clearing the screen?" - Andy Davies
Andy Davies
Re: Case Study: The Up Group Website Performance | Always Twisted. Front-End Development. -
"Keep-alive is different from caching… keep-alive allows a browser to re-use TCP connections so once the first size connections are set up they can be reused, removing the overhead of creating new connections for further requests. Caching is set using the HTTP Cache-Control directive and determines how long browsers and other caches can store a response e.g. CSS file before checking back with the origin server." - Andy Davies
Andy Davies
Re: Test Your App Under Slow Network Speeds -
"It's a reasonable price and a good tool for watching HTTP traffic" - Andy Davies
Andy Davies
Re: Test Your App Under Slow Network Speeds -
"On thing to watch out for with proxies is they may alter connection behaviour (there's a low latency connection between the app and the proxy), I've seen it mentioned by @souders but not researched it myself I tend to use DummyNet to shape bandwidth when I'm testing" - Andy Davies
Andy Davies
Re: New Runtime Interpreter in Android 4.4? -
"I guess OSX / Linux are preferred OS but there must be Windows boxes as people need to work on Chrome for Windows etc. I also know at least one Googler who runs a Windows laptop as his daily machine." - Andy Davies
Andy Davies
Re: What Are People Doing On All Those Cheap Tablets? -
"Other people have reported they don't see the same behaviour too. In browsers it at least still has the same pages loaded (if not in the same state) but in many other apps they restart from scratch. iOS6 had similar behaviour to a limited degree - if I was completing a webform e.g. replying in a forum, it wasn't unusual to lose the contents of the form if I switched apps or even tabs sometimes. I've largely got used to iOS7's behaviour on iPad 2 but still find it a little frustrating, biggest issue I have with iOS is the lack of interaction between apps (Android style intents) and lack of swipe like keyboard. I see the iPad being replaced by a Nexus 7 sooner or later - there's a few apps I'll miss but not that many I hope!" - Andy Davies
Andy Davies
Re: What Are People Doing On All Those Cheap Tablets? -
"I've got an iPad 2 and switching apps in iOS7 is quite a painful experience as generally the one I switch to is reloaded from scratch" - Andy Davies
Andy Davies
Re: How the Browser Pre-loader Makes Pages Load Faster -
"Yup that it is one of the potential problems with postpone, there's also an potential performance issue of a visitor on 3G whose radio goes to sleep and so the delay of radio waking again. I don't think we know which is the best way of handling situations like this yet e.g. should we not use postpone and rely on a custom NavigationController to prioritise content for some apps instead?" - Andy Davies
Andy Davies
"Nice idea, rendering performance needs some polish as it's quite janky / CPU heavy (Chrome's timeline is your friend)" - Andy Davies
Andy Davies
"Appears to be broken so can't judge it" - Andy Davies
Andy Davies
"The more people who get to learn the power of R and statistics the better so powerful, easy to use R tools FTW!" - Andy Davies
Andy Davies
"Nice idea, searches don't appear to work though so can't really judge it" - Andy Davies
Andy Davies
Re: How the Browser Pre-loader Makes Pages Load Faster -
"There was a fair bit of discussion about the attribute names, if you want to take it further the W3C Performance Working Group ( is the place to go." - Andy Davies
Andy Davies
Re: How the Browser Pre-loader Makes Pages Load Faster -
"My reading of the parallel scripts and parallel script/stylesheet test from Browserscope tests suggests it doesn't - Well aware of your involvement in IE so I'll re-test it though." - Andy Davies
Andy Davies
Re: Adding iOS agents to a WebPagetest Instance - Andy Davies -
"I changed the version I run to use it's own (non-shared) cache - I'll post a changeset for it" - Andy Davies
Andy Davies
Re: On The Future of iOS and Android -
"Nope, no bitter at all, just a bit frustrated with the lack of progress that iOS has made in places." - Andy Davies
Andy Davies
Re: On The Future of iOS and Android -
"I use both iOS and Android on a daily basis and in many ways Apple aren't ahead though. The crappy iOS keyboard (compared to swype) and the complete lack of integration between apps are glaring holes in the iOS ecosystem" - Andy Davies
Andy Davies
Re: Tesla Reports Another Profitable Quarter (Depending on Your Math), Musk Admits to Shooting Self In Foot -
"What GAAP does it make a company match up the revenue with the obligation to the customer. I used to work for a company that sold multi-year subscriptions - if we sold a three year subscription we could only recognise a third of the revenue each year. Makes complete sense as a way of accounting to me." - Andy Davies
Andy Davies
Re: On Mobile, Data URIs are 6x Slower than Source Linking (New Research) -
"Interesting results and a few questions… Be good if we could get someone to explain the stages a browser goes through to translate a dataURI to an image and where the 'bottlenecks' - suspect it's partly CPU, partly memory. - What RUM tool did you use, and how is it actually measuring in the times (as only Android 4.x supports Navigation Timing)? So are you just hooking onload for the images? - What format were the images? - Did you do any tests with smaller images compared against a sprite? - Have you done any tests with fonts - several of the font foundries are packaging some fonts as dataURIs?" - Andy Davies
Andy Davies
Re: Setting up SSL on nginx for performance and security -
"No, they install the intermediate certificate separately so the chain is complete but involves extra roundtrips to resolve. Both SSL Labs and the x509 labs testers will show this, but only x509 ( shows how to combine the certs." - Andy Davies
Andy Davies
Re: Setting up SSL on nginx for performance and security -
"it's amazing how many commercial sites don't combined the site and intermediate certificates (step 3)" - Andy Davies
Andy Davies
Re: HTTP Archive + BigQuery = Web Performance Answers -
"To get the first example to work I had to add httparchive: before runs i.e. FROM [httparchive:runs.2013_06_01_pages]" - Andy Davies
Louis Gray
For those who are curious... today is going to be the day. The "Schwag Magnet" twins are coming. Don't expect minute by minute...
Congrats Louis! - Ross Miller
I love the Schwaggin Waggon - Eric Schlissel from twhirl
Awesome! Can't wait to meet your two new kids and hope everything goes as well as possible. - Robert Scoble
When Maryam had Milan we were actually able to use our iPhones in between contractions. (Milan was born at Stanford, just like Louis' kids are -- great wifi there). Maryam didn't want any video, so we did photos and audio. Just be prepared to put down the iPhone IMMEDIATELY when your wife needs you. Otherwise the consequences are harsh. :-) - Robert Scoble
Mazel Tov and may all go as seamlessly as possible. - Mathew A. Koeneker
Wi-Fi at Lucille Packard is great, BTW. :-) - Louis Gray
Congrats! Don't worry about us and take some time offline! - Xavier Bartholome
Louis: I told you it rocks. So, is your wife admitted already? Or did they tell her to take a walk and come back in three hours like they told Maryam? (We went to Jack in the Box, and later, even back home cause, while Maryam was having contractions, she wasn't dialated enough to give birth for nearly 12 hours after we first went to Lucille Packard (Stanford's hospital for children). - Robert Scoble
Oh, and if you know Thomas Hawk, do anything you can to get him to come by and make photos. He took the most spectacular photos of Milan (and my family) that I really treasure to this day. - Robert Scoble
Matthew- Seamless birth , hmm. Kind of counter-intuitive. Louis-all the best to you,wife and twins. - Mark Forman
Congrats! - Yuvi
Good Luck Louis! Stay positive. - Jon-Paul Bussoli
I'm going to sleep hoping we hear great news when I wake up. Just remember, photos, we want photos!!! - Robert Scoble
We are admitted. Contractions are 4-5 minutes apart. We'll be here for a while. - Louis Gray
Cool. Any bets on the time? I'll bet that they are here by noon. Ahh, long night for Louis ahead! Breathe! Breathe! Breathe! :-) - Robert Scoble
I don't dare bet on a time. That's bad luck. But I'm not going anywhere, and she's not either. Duncan Scoble Gray and Cyndy Corvida Gray might debut in the morning. - Louis Gray
now you are ego pandering! Well I am off to bed. Our house is childproofed now and is awaiting the arrival. Milan is looking forward to having a couple of new friends to share toys with. Thinking good thoughts for you both. - Robert Scoble
Be interesting to see how many posts a week you're going to be able to manage now... :-) - Andy Davies
And no, those won't be their real names. :-) - Louis Gray
Congrats man! Get ready for the wild ride. - Mark "Rizzn" Hopkins
Best of luck throughout the night Louis. Hopefully when I wake up the two new Grays will be ready to blog. - MG Siegler
In case you guys wanted to know where you rate, we haven't told any family on either side that we're here. Didn't want to wake anybody up. Once we get close to 7 a.m. PDT, depending where we are then, maybe we'll let them know. Thanks for the notes. (Is this the first FriendFeed "live" birth?) - Louis Gray
Wooo, awesome! Congrats in advance. :) - Don MacAskill
Congrats and good luck! And they'll share a birthday with @crazybob's #2! - Cyndy
Contractions are 2-3 minutes apart now. Both of them hanging out, and both of us, hanging in... - Louis Gray
I do like the names you've chosen, though. Although you haven't managed to tack FriendFeed or Disqus in there. Maybe two middle names would work. I did that with #4 so she could be named after three family members. - Cyndy
Best wishes! - Mark Dykeman
Congrats!! :) - Paula Hawk
My daughter was born in a different age (1991). I couldn't provide updates to the world on an iPhone. Heck, all I could have done (I didn't) would have been to drive home, fire up the Mac Plus and my 2400bps modem, and posted text updates to the Deep Thoughts and Grotto BBSes. - Ontario Emperor from fftogo
@Ontario My last was born in 2005, and I couldn't even update THEN... they ban all cell usage and WiFi is still a pipe dream. They are still going with the "cell phones mess with equipment" airline story. - Cyndy
And regarding could work "Obama" and "McCain" in there somehow...Duncan Scoble FriendFeed Obama Gray? :) - Ontario Emperor from fftogo
first photos better be with the cn stickers :) - Allen Stern
Congrats Louis! am excited for you. - Nick Halstead
Good luck to all four of you! - Chris Nixon
Congratulations Louis! Life as you know it has now changed. Good luck to all of you. - Rob Diana
Allen: CN stickers are in my hand _right now_. Kid you not. You might get lucky. - Louis Gray
Very exciting. Good luck! - Dave Stanley
Omg! How exciting! Congratulations!!!! - Sarah Perez
Congratulations and enjoy every minute! - RyanEs
WOOT!! Good luck to you and your wife at the hospital today Daddy Grey. - Mike Fruchter
You'er not streaming the whole event? ;-) No I agree some things are sacred. Unless you're scoble. I bet mrs scoble is happy that qik wasn't released when she gave birth... - Gez
Congratulations LG. God Bless - Keith - @tsudo from twhirl
I'll add my congratulations! I'll enjoy taking a rest from your articles :P - Tim Hoeck
Good luck. - James Rishabh Mishra
Congrats Louis! I know what raising twins is like, so I'll wish you good luck as well :) - Shey
Gez: there were certainly video options when Milan was born. She made it very clear that video wasn't to be used. - Robert Scoble
This will be up there as one of if not your BEST day - Christian Anderson
Agree wholeheartedly with Christian.... - Chris Reed
CONGRATULATIONS DADDY!!!!!!!!! - Susan Beebe
Congrats! - Dave Peck
I too will add congratulations! - Andy Tinkham from twhirl
Congratulations Louis! I can only imagine how excited you must be right now. - Caleb Elston
Waiting..waiting...waiting.... ;-) - Hutch Carpenter
Only 8 hours gone by. Our first was 37 hours. The second was like 2 - Capn' One Eye - adrift
Back at Hutch: Waiting...waiting...waiting... - Louis Gray
Congratulations! - Steve Lynch
Ten hours now. Cigars at the ready. - Russellreno
Wishing the best for all four (!) members of the family!!! - Dustin Harris
CONGRATS LOUIS! Glad I get to be in the names :D Can't wait for pictures though. I need to get "shegeeks" and "hegeeks" schwag over there asap! - Corvida
I hope you got plenty of Coffee and brought your laptop battery plug. It's going to be a loooooooong day/night. Hey at least you got FF to kill the time :-) - Mike Fruchter
Update: Things are obviously not the fastest I've ever seen, but progress is progress. We're at six cm. I didn't want to do a cm by cm update, but here we are! Nurses seem excited, so I'll pretend I am. - Louis Gray
This is one occasion when comments really need timestamps... - Andy Davies
This just in..... LG still waiting as of 5 minutes ago. Now in hour 13. - Russellreno
I am jealous. The arrival of one was a joy. Two would have blown my mind! - Capn' One Eye - adrift
Turning to superstition a bit, I got out of my A's shirt, which I've been wearing since we got here. Let's see if wearing the DISQUS shirt I got from Daniel Ha does the trick. :-) - Louis Gray
All in good time. Heck, I would be excited as hell. :) - Mathew A. Koeneker
For those watching this thread, obviously things have taken longer than we expected. Dilation has been slow, and the doctors are talking C-Section. We're trying to avoid. Babies are doing great. - Louis Gray
C-Section imminent, as labor stalled (you might have noticed). Hopefully, back with good news soon. - Louis Gray
Well, this is the sixth thread goin' on the twins, so (1) Louis we're hangin' with ya buddy and (2) get on with it already ... I want to go to sleep :) Seriously, positive, warm and happy thoughts ... and coffee. - Charlie Anzman
at this rate, i think Scoble's gonna have to change his bet from noon Friday to noon on Saturday! - Susan Beebe
Baby Grays are here! The boy clocked in at 9:01 at 5 pounds, and the girl weighed in at 4 pounds, 3 oz at 9:02. Both healthy. - Louis Gray
YEAH!!! Congratulations!!! This is wonderful news - both healthy!!, what are their NAMES?? - Susan Beebe
bump for the oldest thread i've ever found on ff, post-congrads, :) - chaz2b
Matthew and Sarah are now five years old. Happy birthday, twins! - Louis Gray
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