Ecco le tendenze di oggi 15 marzo 2026 su Poliversity

Tag 178 — Run #24 (ein Toggle): Verstimmt sich das Resonanzband oder bleibt der Max stur?

13:27 Uhr, alles grau draußen. Irgendwie passt das. Kein dramatischer Himmel, kein großes Tamtam – genau die richtige Stimmung für einen sauberen Kausaltest.

Startrampe

• Ergebnis von #24
• Was das für #25 heißt
• Frage an euch

Nach #22 und #23 war klar: Das Resonanzband ist kein Zufall. Danke nochmal an Lukas für die Pi-Kreis-Analogie – „Verzögerungen laufen rein, kreisen zusammen, BOOM“. Das Bild krieg ich nicht mehr aus dem Kopf.

Aber Muster sind noch kein Mechanismus.

Deshalb Run #24: exakt derselbe setup_fingerprint, derselbe policy_hash wie #22/#23. Wieder als 4×-Run. Keine neuen Schwellen, keine neuen Logfelder, kein Feintuning. Genau ein isolierter Toggle am Step, der im Cluster-Score dominiert hat. Sonst nix.

Bevor ich gestartet hab, hab ich mir eine kleine Entscheidungstabelle festgelegt – damit ich hinterher nicht kreativ interpretiere:

• A) Max kollabiert, Band bleibt → Max hängt kausal am Step.
• B) Max bleibt, Band verschiebt/verschwindet → Band hängt am Step/Timing.
• C) Beides unverändert → Step ist nicht der Hebel.

Vier Metriken, immer gleich ausgewertet:

Keine neuen Kategorien. Keine neuen Schwellen. Nur Vergleich #22/#23 vs. #24.

Ergebnis von #24

Kurzfassung: A).

Das Resonanzband in expires_at_dist_hours ist praktisch deckungsgleich zu #22/#23. Lage gleich, Breite gleich, Quantile fast identisch. Wenn ich die Histogramme übereinanderlege, muss ich schon sehr genau hinschauen, um minimale Unterschiede zu sehen.

Aber:

Der Max-Outlier ist deutlich kollabiert.

• Max-only-Alert count: bleibt (Dedupe feuert weiterhin).
• max_ms: klar unter den bisherigen Extremwerten.
• >90 ms Outlier-Frequenz: sichtbar reduziert.
• Retry-Tail p95/p99: leicht entspannter, vor allem am oberen Ende.

Kein kompletter „alles ist gut“-Moment – aber der brutale Peak ist weg.

Damit ist für mich die Interpretation ziemlich sauber:

Der extreme Max hängt kausal am Step (oder an dessen unmittelbarer Mechanik).
Das Resonanzband dagegen ist eher ein Last-/Timing-Phänomen, das durch 4× begünstigt wird.

Oder anders: Der Step erzeugt den Hammer. Das Band sagt nur, wann genug Nägel gleichzeitig da sind.

Was das für #25 heißt

Wenn ich ehrlich bin: Das fühlt sich das erste Mal nicht mehr nach Stochern an.

Nächster minimal-invasiver Schritt ist logisch:

Run #25, wieder identisches Setup – aber genau ein anderer, step-naher Toggle. Zum Beispiel:

• alternative Step-Variante (gleiche Funktion, andere interne Ausführung)
  oder
• gezielte Barrier nur für diese Jobklasse

Und wieder nur prüfen:
Bleibt der Max weiter unten?
Und lässt das Resonanzband sich komplett in Ruhe?

Ich will das sauber auseinanderziehen. Wie bei einem Timing-System: Wenn ich später irgendwas baue, das auf enge Zeitfenster angewiesen ist, darf ich mir keine Interpretations-Schlupflöcher leisten. Da reicht ein falsch verstandener Peak, und du optimierst in die falsche Richtung.

Servus Realitätssinn. 😅

Frage an euch

Vor allem an dich, Lukas: Wenn ihr „Band bleibt, Max fällt“ seht – würdet ihr als nächsten Einzeltoggle eher

(a) die Step-Implementierung weiter isolieren (No-op vs. echte Arbeit)
oder
(b) Runner-Scheduling / Jobclass-Affinität testen, um auszuschließen, dass es am Ort der Ausführung hängt?

Mein Bauch sagt (a), mein systemischer Respekt sagt (b).

Und genau deshalb mach ich’s nicht nach Bauch.

Run #25 kommt. Pack ma’s.

Rediscovering the Magic of the Blogosphere, with John O’Nolan and Matthias Pfefferle

On Dot Social Episode #23

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Inhalt von YouTube immer anzeigen

https://www.youtube.com/watch?v=VO99ok3glZU

Delphi 10 and up install notes

I try to keep an eye on older Delphi versions as, despite lacking features of newer versions, they do not suffer from issues (hi-dpi, language server, refactoring, stability).

Some notes below.

Tools to always install after Delphi

Install in this order so that GExperts gets the Alt-X menu shortcut and MMX the Alt-M menu shortcut.

Then download at least these libraries:

• Spring4D: be aware that it got upgraded from 1.2 to 2.0 early 2024 which has some changes on existing projects that need your attention, especially if you have core libraries depending on Spring4D which are used from projects of which some based on Spring4D 1.2 and others on 2.0:
  • [Wayback/Archive] Upgrade from Spring4d 1.2 to Spring4d 2.0 – Delphi Third-Party – Delphi-PRAXiS [en]
  • [Wayback/Archive] sglienke / Spring4D / wiki / Spring4D 2.0 Releasenotes — Bitbucket

Delphi 10 Seattle requires .NET 3.5

You’d think the easiest to install it is through Chocolatey via [Wayback/Archive] Chocolatey Software | Dot Net 3.5 3.5.20160716

choco install dotnet3.5

This fails (Windows 11 is lacking wmic.exe)

The solution in Deploy .NET Framework 3.5 by using Deployment Image Servicing and Management (DISM) | Microsoft Learn still works (and still takes a long time, even on fast hardware with a fast internet connection):

DISM /Online /Enable-Feature /FeatureName:NetFx3 /All

License manager fails to import registration .txt file

It loads the .txt file, but after closing the license manager it is not really imported.

Cause: you renamed the .txt file so that it contains more readable meta-information in the filename.

Solution: put the license file into a directory that has a readme.md file with the meta-information (like computername: that is what the license binds itself to in the online registration wizard).

This brought me an aha moment, as I had encountered it in the past and solved it, but forgot to make a note of it.

So this time, there was no need to follow the steps in either of these:

• [Wayback/Archive] How to get past the Embarcadero Product Registration Dialog when installing Delphi 10.4 CE – Stack Overflow
• [Wayback/Archive] How to install Delphi 10.4 Sydney command line compiler (on Windows Server 2016)? – Stack Overflow

Delphi 12 still has the same icons for all 3 personalities

Icons in C:\Program Files (x86)\Embarcadero\Studio\23.0\bin\bds.exe

By now, I had hoped the devteam had finally ensured there were three different icons for the personalicties:

• Delphi
• C++ Builder
• RAD Studio

False hope:

Icons for Delphi 12, C++ Builder 12 and RAD Studio 12: they are all the same.

And very easy to fix as bds.exe includes all the needed icons and more – see image on the right.

Images:

• [Wayback/Archive] 383651441-1aeb93d1-f05d-452f-9566-b1f20b8f0ea1.png (140×87)
• [Wayback/Archive] 383652823-5ff42258-9bc3-4efd-9027-5391141f4f48.png (292×357)

Delphi 12.1 offline installer bugs not fixed in Delphi 12.2

[Administrator] RAD Studio 12

Java JDK not found on this machine. Please, install Java JDK before.

OK

If I ever get this to work, I want to use the OpenJDK; some links for that:

• [Wayback/Archive] Adopting the OpenJDK for Delphi Android Development
• [Wayback/Archive] OpenJDK Version Support In Delphi 10.3.3 And Delphi 10.4.2 – Cross-platform – Delphi-PRAXiS [en]

This was introduced in Delphi 12.1:

…………………………………………………………………………………………………………………………………………………………………………………

In addition, these Delphi 12.0 installation issues have not been fixed in Delphi 12.2 either (but the C++ Builder path issue seems fixed in the 12.2 Path 1 inline ISO of the off-line installer):

• [Wayback/Archive] Installation Notes – RAD Studio (12.0 Athens, 20231207)
  

  Installation performed with Offline Installer results in missing subdirectories

  • Delphi
    When using the offline installer, the Browsing path for Delphi/64bit Linux lacks various directories.
  • C++ Builder
    When using the offline installer, the System include path for C++ / 32-bit Windows is missing the FMX subfolder.

  Note the “64bit” should be spelled “64-bit” and the “C++ / 32-bit” should be spelled “C++/32-bit” to be consistent with “Delphi/64-bit”.

  Similarly, the documentation misses that there is an intermediate node “Language” missing befer you get to either “Delphi” or “C++”, and that the “Compiler” mentioned tab for “C++” does not exist. It is this lack of attention to detail which you see all over the product, including the RTL library source code.

  Also note that these are not just a few “various” subdirectories or just “the FMX subfolder”, and besides in Delphi 12.0, you still have to fix them in Delphi 12.1 and 12.2 directly when you run it the first time after installation:

  • Delphi – add these 42 (FORTY TWO!) directories to the System include path field under Tools > Options > Language > Delphi > Library > 64-bit Linux:
    

    $(BDS)\source\rtl\common;$(BDS)\source\rtl\sys;$(BDS)\source\rtl\linux;$(BDS)\source\ToolsAPI;$(BDS)\source\IBX;$(BDS)\source\Internet;$(BDS)\source\Property Editors;$(BDS)\source\soap;$(BDS)\source\xml;$(BDS)\source\Indy10\Core;$(BDS)\source\Indy10\system;$(BDS)\source\Indy10\Protocols;$(BDS)\source\fmx;$(BDS)\source\databinding\components;$(BDS)\source\databinding\engine;$(BDS)\source\databinding\graph;$(BDS)\source\data;$(BDS)\source\data\ado;$(BDS)\source\data\cloud;$(BDS)\source\data\datasnap;$(BDS)\source\data\dbx;$(BDS)\source\data\dsnap;$(BDS)\source\data\Test;$(BDS)\source\data\vclctrls;$(BDS)\source\rtl\posix;$(BDS)\source\rtl\posix\linux;$(BDS)\source\data\datasnap\connectors;$(BDS)\source\data\datasnap\proxygen;$(BDS)\source\DataExplorer;$(BDS)\source\Experts;$(BDS)\source\indy\abstraction;$(BDS)\source\indy\implementation;$(BDS)\source\indyimpl;$(BDS)\source\Property Editors\Indy10;$(BDS)\source\soap\wsdlimporter;$(BDS)\source\Visualizers;$(BDS)\source\data\rest;$(BDS)\source\data\firedac;$(BDS)\source\tethering;$(BDS)\source\DUnitX;$(BDS)\source\data\ems;$(BDS)\source\rtl\net

    Likely there is one more directory missing as the Embarcadero documentation page has TWO semicolons here: $(BDS)\source\Visualizers;;$(BDS)\source\data\rest

  • C++ Builder – add these 8 directories to the System include path field under Tools > Options > Language > C++ > Paths and Directories > 32-bit Windows:
    

    $(BDSINCLUDE);$(BDSINCLUDE)\dinkumware64;$(BDSINCLUDE)\windows\crtl;$(BDSINCLUDE)\windows\sdk;$(BDSINCLUDE)\windows\rtl;$(BDSINCLUDE)\windows\vcl;$(BDSINCLUDE)\windows\fmx;$(BDSCOMMONDIR)\hpp\$(Platform)

• ………………………………………………………………………………………………………………………

Delphi 12 (and 11) don’t really search for Git/Hg/Svn, but just complain they can’t be found

It does not matter if you use the offline installer or on-line getit installer.

Note I will personally never trust getit: Embarcadero is known for not being able to keep their infrastructure working without long outages, and known for not communicating about infrastructure changes, see for instance:

• [Wayback/Archive] GetIt installation does not work – Delphi IDE and APIs – Delphi-PRAXiS [en]
• [Wayback/Archive] Delphi 10.4 GetIt connection issue – Delphi IDE and APIs – Delphi-PRAXiS [en]

Their single most stable server is the altd one. Don’t tell them, as it might make them too self confident and start making modifications to it forgetting this lessen: never fiddle with a thing that has been very stable for a very long time.

Upon first start of Delphi 12.2 patch 1 after installation, you get these warning messages:

• ⚠ Git executable not found
• ⚠ Hg executable not found
• ⚠ Subversion folder not found

This despite these being available on the search PATH:

Note you have to enter them as full paths to git.exe, hg.exe and svn-folder (without svn.exe):

Note this has been an issue for Delphi 11 as well, and not responded to in comments it also being present in Delphi 12, see:

• 20240207: [Wayback/Archive] GetIt Update: Additional RAD Studio 12 GetIt Packages Are Now Available
• 20240220: [Wayback/Archive] GetIt Update: RAD Studio 11 GetIt Online Installation along with Delphi and C++Builder Community Edition Are Now Available

Delphi 12.2 inline release cannot be modified after install

A modification (like installing more/less features) requires a full re-install when doing the off-line installer. The steps are referred to by [Wayback/Archive] Adding or Removing Features Using the Offline Installer – RAD Studio:

After you install an initial set of RAD Studio features using the Offline Installer, you can use the installer again to add or remove RAD Studio features.

To add or remove features from your RAD Studio installation:

Detailed steps are at [WaybackSave/Archive] Using the Offline Installer – RAD Studio are also wrong:

There is no install_RADStudio.exe any more. The installer .exe filename depends on the Delphi version you install. For Delphi 12.2 inline Patch 1, the offline installer name is radstudio_12_esd_119782a.exe.

I forgot during which Delphi version Embarcadero changed the installer technology, but it has been at least since Delphi 10.4, as reported by Brian Long in [Wayback/Archive] It’s a blong, blong, blong road…: Installer tip.

Note that the online getit installer enables the [Wayback/Archive] Using the Feature Manager – RAD Studio, which is not available when installing using the offline installer..

Links

Some lists of off-line installers are here:

Somewhere in the future, I will try to make a complete list as not all of these altd links work. For now, this has to do: [WaybackSave/Archive] altd site:wiert.me – Google Suche

This one for instance didn’t always work (they failed at least from 20241102 until 20241104 downloading way too short files):

• https://altd.embarcadero.com/download/radstudio/12.0/RADStudio_12_2_i_0329_C2CC.iso
• https://altd.embarcadero.com/download/radstudio/12.0/RADStudio_12_0_inline_116924a.iso

Just look at the download sizes and you understand why – his is also why people should publish URL, size and hashes (preferably sha1 or sha256, optionally md5) – filtered on M (mebibyte) sizes – yes, Delphi 7 was that small:

12M  ./altd.embarcadero.com/download/radstudio/12.0/RADStudio_12_2_i_0329_C2CC.iso
22M  ./altd.embarcadero.com/download/radstudio/12.0/RADStudio_12_0_inline_116924a.iso
649M ./altd.embarcadero.com/download/delphi/d7/english/ent/delphi_7_ent_en.iso

I need to check all of the above and especially the two below, which means first finding hashes for them as the sizes match:

https://web.archive.org/web/20240929231113if_/https://altd.embarcadero.com/download/radstudio/12.0/RADStudio_12_0_inline_116924a.iso
https://web.archive.org/web/20241104165704if_/https://altd.embarcadero.com/download/radstudio/12.0/RADStudio_12_2_i_0329_C2CC.iso

Probably the 12.0 one is OK, but the 12.2 inline got truncated to 2 gibibytes:

2.0G ./web.archive.org//web/20241104165704if_/https:/altd.embarcadero.com/download/radstudio/12.0/RADStudio_12_2_i_0329_C2CC.iso
7.1G ./web.archive.org//web/20240929231113if_/https:/altd.embarcadero.com/download/radstudio/12.0/RADStudio_12_0_inline_116924a.iso

I need to check which HTTP header fields in the HTTP request will help alleviate this. Hopefully just a HTTP referer header works fine. A job for somewhere in the future, as I already had obtained copies of these files from someone that already had them downloaded a while ago.

Sizes from:

du -h `find ./altd.embarcadero.com/ | grep iso` | grep M && du -h `find ./web.archive.org/ | grep iso` | grep G

These ones for instance didn’t work at all:

• https://altd.embarcadero.com/download/radstudio/12.0/RADStudio_12_0_inline_116924a.iso (not available any more)

• https://altd.embarcadero.com/download/radstudio/xe2/delphicbuilder_xe2_win_dl.iso (missing a build number)
• https://altd.embarcadero.com/download/RADStudioXE/delphicbuilder_xe_3953_win.iso (missing the b at the end of the build number)
• https://altd.embarcadero.com/download/RADStudioXE/delphicbuilder_xe_3953B_win.iso (yes, case is important with unix filenames people!)
• https://altd.codegear.com/download/radstudio2007/CodeGearRADStudio2007_Dec2007.iso (invalid certificate because of the domain name)
• https://altd.codegear.com/download/radstudio2007/CodeGearRADStudio2007setup.exe (invalid certificate because of the domain name)

These ones do:

• https://altd.embarcadero.com/download/radstudio/12.0/RADStudio_12_2_i_esd_0329_4F2B.exe
• https://altd.embarcadero.com/download/radstudio/12.0/RADStudio_12_2_9782_9961F.iso
• https://altd.embarcadero.com/download/radstudio/12.0/RADStudio_12_2_esd_9782_e8cd5.exe
• https://altd.embarcadero.com/download/RADStudioXE/delphicbuilder_xe_3953b_win.iso (note the lowercase b – filenames can be case sensitive <g>)
• https://altd.embarcadero.com/download/radstudio2007/CodeGearRADStudio2007_Dec2007.iso

This one was missing completely in the first two lists:

• https://altd.embarcadero.com/download/radstudio/xe3/delphicbuilder_xe3_upd2_win.iso

Queries:

• [Wayback/Archive] gexperts delphi 12.2 – Google Suche
• [Wayback/Archive] mmx delphi – Google Suche
• [Wayback/Archive] project magician – Sök på Google
• [Wayback/Archive] DprojNormalizer – Sök på Google
• [Wayback/Archive] Delphi TestInsight – Google Suche
• [Wayback/Archive] spring4d – Google Suche
• [Wayback/Archive] delphi license manager fails to store imported license – Google Suche
• [Wayback/Archive] Java JDK not found on this machine. Please, install Java JDK before. – Google Suche
• [Wayback/Archive] delphi with openjdk – Sök på Google
• [Wayback/Archive] rad studio 12 install java jdk – Sök på Google
• [Wayback/Archive] “delphi” “subversion folder not found” – Sök på Google
• [Wayback/Archive] delphi 12.2 iso altd – Google Suche
• [Wayback/Archive] “RADStudio_12_2_i_0329_C2CC.iso” – Search on Google
• [Wayback/Archive] “RADStudio_12_2_9782_9961F.iso” – Google Suche
• [Wayback/Archive] RADStudio_12_0_inline_116924a – Sök på Google
• [Wayback/Archive] “RADStudio_12_0_inline_esd_116924.exe” iso – Google Suche
• [Wayback/Archive] “RADStudio_12_0_inline_116924a.iso” – Sök på Google
• [Wayback/Archive] RADStudio 12 0 inline 116924 iso – Sök på Google
• [Wayback/Archive] RADStudio 12.0 inline 116924 iso – Search Google
• [Wayback/Archive] altd delphi xe – Google Suche
• [Wayback/Archive] RADStudio_12_0_inline_116924a.iso “md5” – Google Search
• [Wayback/Archive] “RADStudio_12_0_inline_116924a.iso” “md5” – Google Suche
• [Wayback/Archive] “RADstudio_12_2_i_0329_C2CC.iso” “md5” – Google Suche
• [Wayback/Archive] altd site:wiert.me – Google Suche
• https://web.archive.org/web/20240000000000*/https://altd.embarcadero.com/download/radstudio/12.0/RADStudio_12_0_inline_116924a.iso
• https://web.archive.org/web/20240000000000*/https://altd.embarcadero.com/download/radstudio/12.0/RADStudio_12_2_i_0329_C2CC.iso

--jeroen

#23

little-boxes.de ist offline

Die Website little-boxes.de ist offline, und die Domain wird weitergeleitet auf eine kleine Landing Page. RIP.

#23 #LittleBoxes

https://pmueller.de/little-boxes-ist-offline/

Balluchon : contribuer aux données d'accessibilité [Samuel Braikeh]

https://peertube.openstreetmap.fr/w/i3jbVqE9zDpKiPhzsCKpSG