Open Source

The Internal Page Cache is a core module in Drupal responsible for caching pages requested by anonymous users.

When a page is cached and an anonymous user makes a new request, Drupal does not need to perform any rendering or page-building processes. It simply retrieves the rendered page from the cache and sends it to the client.

The reason it only applies to anonymous users and not authenticated users is that the page returned to the client must have exactly the same content for all users.

In the case of authenticated users, although part of the content may be the same for everyone, there are always elements that can vary, such as the user block displaying the user’s name or other user-specific information.

For these cases, there is the Dynamic Page Cache module, which handles caching for both anonymous and authenticated users.

Functionality

Cache Bin

For storing and managing cached pages, the Internal Page Cache defines its own cache bin called “Page,” meaning that cached objects are stored independently of other existing cache systems in Drupal.

It’s easy but has some gotchas due to Rails metadata tables creating conflicts while trying to sync data across databases.

There has been a significant
change
to the behaviour of
sysupgrade(8):

CVSROOT:	/cvs
Module name:	src
Changes by:	florian@cvs.openbsd.org	2024/09/24 01:33:35

Modified files:
	usr.sbin/sysupgrade: sysupgrade.8 sysupgrade.sh 

Log message:
Remove -r toggle and generally be less smart.

The default is to install the next release. Snapshots are only
installed when invoked with -s.

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The other day a friend asked me a pretty interesting question: what happened to all those companies who made those Japanese computer platforms that were never released outside Japan? I thought it’d be worth expanding that answer into a full-size post. ↫ Misty De Meo Japan had a number of computer makers that sold platforms that looked and felt like western PCs, but were actually quite different hardware-wise, and incompatible with the IBM PC. None of these exist anymore today, and the reason is simple: Windows 95. The Japanese platforms compatible enough with the IBM PC that they could get a Windows 95 port turned into a commodity with little to distinguish them from regular IBM PCs, and the odd platform that didn’t use an x86 chip at all – like the X68000 – didn’t get a Windows port and thus just died off. The one platform mentioned in this article that I had never heard of was FM Towns, made by Fujitsu, which had its own graphical operating system called Towns OS. The FM Towns machines and the Towns OS were notable and unique at the time in that it was the first operating system to boot from CD-ROM, and it just so happens that Joe Groff published an article earlier this year detailing this boot process, including a custom bootable image he made. Here in the west we mostly tend to remember the PC-98 and X86000 platforms for their gaming catalogs and stunning designs, but that’s like only remembering the IBM PC for its own gaming catalog. These machines weren’t just glorified game consoles – they were full-fledged desktop computers used for the same boring work stuff we used the IBM PC for, and it truly makes me sad I don’t speak a single character of Japanese, so a unique operating system like Towns OS will always remain a curiosity for me.