Why is the 64-bit version of Chrome more stable than the 32-bit - google-chrome

When Google first released the 64-bit version of Chrome to the Canary and Dev channels they stated that:
Stability: Finally, we’ve observed a marked increase in stability for 64-bit Chrome over 32-bit Chrome. In particular, crash rates for the the renderer process (i.e. web content process) are almost half that of 32-bit Chrome.
http://blog.chromium.org/2014/06/try-out-new-64-bit-windows-canary-and.html
What exactly would make the 64-bit version more stable? Is there something about recompiling to 64-bit that makes it more stable, or was there some retooling under the hood that had this effect?

Related

Why does chrome driver has not x64 variant but edge driver does?

They both are chromium based but only Edge has special driver for x64. Why?
Chrome
Edge
Maintained by different orgs. Chrome -> Google, Edge -> Microsoft
64-bit version driver availability depends on browser implementation, priorities of the orgs etc. Microsoft took initiative to support 64-bit version of Edge browser, while Google prioritizes supporting 32-bit version because it is still widely used.
Chrome driver developers may also be considering other factors such as compatibility with other operating systems, the need to support multiple versions of the browser, and the availability of engineering resources.
But, it's highly likely a 64-bit version of Chrome driver will be available in the future.

How to target 32 bit flash player on win 7 64 bit

I have win7 64 bit on my desktop and win7 32 bit on my laptop. I recently upgraded my php to 5.6.2 and amfphp to 2.2.2. As a result I had to modify several ActionScript 3 scripts to access my data. I got the scripts working on my 32 bit laptop, but they looked "fractured" on win 7 64 bit.
I know that the 64 bit flash player installer now installs both a 32 bit version and a 64 bit version of flash player.
Is there a way to specify that these AS3 scripts are to use the 32 bit flash player when launching with 32 bit Firefox on a 64 bit system?
An Adobe Staff member provided the following info and upon loading Firefox 54.0b6 (beta) I found that he was right. Most of my animations run as expected, although some of the games run with significant lag time on keyboard nav.
"Just for clarity, the bitness of Flash Player is dependent on the bitness of the host browser. If you're running a 32-bit browser on a 64-bit OS, you're still going to get the 32-bit Flash Player. The only case where you'll get 64-bit Flash Player at runtime is when you're running a 64-bit browser on a 64-bit operating system."
"I was able to reproduce this on Win7 x64 with Firefox 54.0b4 (32-bit), but upgrading to the latest beta - Firefox 54.0b6 (32-bit) seems to resolve it. I'm using the latest publicly available Flash Player (25.0.0.171) to test. For completeness, I'm also unable to reproduce the problem on Chrome or IE on Win7 x64, or on Firefox with MacOS 10.12."
"Mozilla has been doing a lot of work on their rendering pipeline, and I suspect that the behavior you're seeing is fallout from that. Since it's already fixed, it's just a matter of waiting for the changes to propagate to the release builds. They're on a 6-week cycle, so assuming those fixes get promoted in the next release, you should see them land relatively soon."

MakeAppx Manifest xml settings for 32bit and 64bit app (ProcessorArchitecture)

In my manifest xml file I have this setting, does it mean that only 64bit Windows10 installations do accept my package? My app is native 32bit, which setting is recommended to this field to make it work with both 32 and 64 bit os?
ProcessorArchitecture="x64"
I think if you set ProcessorArchitecture="x64" in your manifest xml file, the package just only was installed on the x64 Windows 10. But you can set
ProcessorArchitecture="x86" in the manifest, because this x86 package can all work fine on x86 and x64 Windows 10.
This answer based on VS C++, but the context is basically the same for manifests. Surprised to see that W10 X86 only installations actually exist, but they do, (or did), because, as the free W10 upgrade did not provide an option to change architectures, only a clean install would.
However, from an old Tom's Hardware post:
All processors since the Opteron in 2003 and the intel Pentium 4 Prescott ( the latter editions ) has 64bit instruction set and will all run 64bit windows.
Thus as long a MSFT continues to support 32 bit architecture, X86 is the safer option, although X64 would probably still work.
processorArchitecture='*'
covers all bases as well.
Microsoft's documentation says to use processorArchitecture="ia64" for Windows 64-bit builds; however, they do not follow their own advice. Microsoft uses "amd64" for 64-bit builds of WordPad.exe and iexplore.exe (Internet Explorer 64-bit) according to the embedded app manifest of these EXEs on my Windows 10 computer.

Chrome Driver for Windows 8 64 bit

I am new to Selenium and writing my test cases only for firefox. I wish to write it also for Chrome driver. But where should I download for Widows 8 64 bit.
Have you tried with 32-bit Windows ChromeDriver here? What's wrong with it? If there are any errors, post full exception please.
As far as I know, there isn't a 64-bit Chrome on Windows yet (see this ticket), as a result, there is no ChromeDriver for 64-bit Windows.
Here 32/64 bit are in term of the browsers' architecture, not the OS. Please check if your Chrome 32-bit or not, if it's 32-bit, download the 32-bit ChromeDriver.

does mysql 5.4 has a linux 32 bit version?

Can MySQL 5.4 beta be compiled for 32-bit processors under Linux?
The current beta only has binaries for some 64-bit versions, but if you're keen on starting to beta test right now you should be able to compile from the sources on a 32-bit systems. (It IS a beta, of course, so unreliability IS to be expected -- don't run it in production, whether on 32-bit or 64-bit systems!)
According to this blog it's only available for 64-bit machines.
http://willysr.blogspot.com/2009/04/mysql-54-preview.html
or here
First, the preview release of MySQL
5.4 only includes the InnoDB scalability fixes (addressing more
CPU's/cores). Second, it is limited to
the Solaris and Linux 64-bit platforms
at this time. The other features
mentioned in this article and
additional platform support will be
appearing very shortly, so be looking
for upcoming announcements soon.
http://74.125.93.132/search?q=cache:iLgUTcXAmGUJ:mirror.facebook.com/mysql/tech-resources/articles/mysql-54.html+mysql+5.4+64bit+only&cd=9&hl=en&ct=clnk&gl=us&client=firefox-a
google cache because that website is down
if you can run ./configure and make without any errors, it should work properly.