Posted by jpluimers on 2018/01/08
Like many, I’m a digital packrat. Somehow all your storage space somehow becomes full over time. But sometimes that’s not because just you are a digital packrat. Applications can be digital packrats too.
Chrome is such an example as on Mac OS X it will keep every prior version filed under /Applications/Google Chrome.app/Contents/Versions. In my case GrandPerspective showed it as one big blob of close 20 gigabyte. Which is odd as the download itself is was slightly short of 20 gigabyte of Chrome versions.
There are various ways to clean up this by script, but I find the easiest to do this in Finder:
- From Grand Perspective, right click the entry, then choose “Reveal in Finder”
- In Finder, right click the entry, then choose “Show Package Contents”
- In Finder, with the expanded “Contents” folder, browse to the “Versions” folder and expand it.
- From Finder, delete unwanted versions.
–jeroen
References:
Posted in Apple, Power User | Leave a Comment »
Posted by jpluimers on 2018/01/07
Over the last few days I’ve collected a lot of Meltdown and Spectre links at 1984 and (IT) (in)security – Google+.
Most of them provide links to what happened this, year, but a few are also on the path leading to these vulnerabilities. In the links you will also find the affected architectures and patches by various vendors which I have tried to summarise below.
In the link collection, I’ve tried to keep the number of hops to the actual sources as short as possible (as many have re-shared original) links but still attribute to the first one I got the link from.
Since the WordPress “Press-This” functionality is limited, even after all these years, so for now it will be a one-time link dump; filling in more of the archival WayBack and Archive.is links and adding more context will hopefully come later.
I will try to keep links roughly in chronological order (please post a comment where I goofed up) and I hope to find some time to have a “most important” or “summary” list eventually.
A few notes first
- At the start of implementing any of these technologies, it was warned these could impose security risks:
- CISC by using a RISC microarchitecture
- processor and MMU level caching
- speculative execution
- indirect branch prediction
- All architectures involving these features are or will be involved over time.
- More of these vulnerability techniques are going to evolve beyond the architectures that have been found vulnerable now in alphabetical order:
- AMD x64/x86
- ARM AArch64
- IBM Power PC
- IBM Z series
- Intel x64/x86
- Patches will slow down things depending on the kinds of workloads.
- The only real solution is for CPU vendors to re-design their architectures so the problems are solved at the hardware levels.
This could take a few generations of CPU hardware, so until then, patches are needed.
- Like many cases of vulnerabilities, public relations by various vendors was handled in a bad way. Please try to read through them.
- Read/view:
Remember:
List
Read the rest of this entry »
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Posted by jpluimers on 2018/01/07
In the blast of Spectre and Meltdown, don’t forget that humans still goof up: [WayBack] Private keys in software from Blizzard, Electronic Arts, Microsoft, and the German Federal Bar (Bulletproof TLS Newsletter Issue #36).
Luckily enough people keep an eye on these too.
Via:
–jeroen
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Posted by jpluimers on 2018/01/07
If you run into animation problems in Delphi Tokyo 10.2 update 2, then read [WayBack] … In particular I cannot use the use the animation to change the tab in a TabControl… – Raffaele Miola – Google+.
It is likely that RSP-19525 (10.2 Tokyo Release 2 breaks Animation under Android – App hangs).
Some temporary fixes that might help you are here:
I think that for cross platform and especially mobile development means you need to use tools from vendors that live and breathe that, by constantly showing they master these subjects for instance having good apps in the app stores and examples that are regularly updated to the ever changing field.
I really wonder what the rest of the Delphi community thinks about that.
–jeroen
Posted in Delphi, Development, FireMonkey, Software Development | 1 Comment »
Posted by jpluimers on 2018/01/05
… simply hold the refresh button and then tap on Request Desktop Site. The page should refresh and you should be redirected to web.whatsapp.com and you should be looking at a QR code on the screen of your iPad.
If you know it’s “simply”.
Source: How to Use WhatsApp on iPad
–jeroen
Posted in Apple, iOS, iPad, Power User | Leave a Comment »
Posted by jpluimers on 2018/01/05
From [WayBack] 1. Presenting Your Presentation – Fixing PowerPoint Annoyances [Book]:
PowerPoint Opens Minimized
THE ANNOYANCE: I can’t get my presentation to open properly when I double-click it. I can see the PowerPoint icon on the taskbar, but it won’t maximize or restore. How can I view the presentation?
THE FIX: Your slide show is set to display on the secondary monitor, which is no longer attached to your computer. Open PowerPoint from Start → Program Files and select File → Open to open your presentation. Then select Slide Show → Set up Show and choose “Display slide show on primary monitor.”
–jeroen
Posted in Office, Power Point, Power User | Leave a Comment »
Posted by jpluimers on 2018/01/04
A few people recently discovered the beauty of record helpers:
Record helpers can help any value type (which includes enumerated types) so you can add functions to enumerations.
Class helpers can help class types.
There are no interface helpers and likely won’t be there for a long while.
–jeroen
Posted in Conference Topics, Conferences, Delphi, Development, Event, Power User, Software Development | 2 Comments »
Posted by jpluimers on 2018/01/04
[WayBack] Hi there, this is pure curiosity only; but this compiler behaviour seems odd to me. What do you think?… – Agustin Ortu – Google+
The problems start when you prefix the outer class which you have to when using inner consts ([WayBack] Oh nice. Feel free to QP. Fails at least in Delphi XE8. … – Jeroen Wiert Pluimers – Google+).
The big problem in both cases is a formal language specification. The lack of a formal language specification makes it very hard to predict the effect of use cases or generate them for testing.
So this post is yet another request: Please Embarcadero/Idera, come up with a formal language definition for Delphi.
Read the rest of this entry »
Posted in Delphi, Development, Software Development | 2 Comments »
Posted by jpluimers on 2018/01/03
Raspbyerry Pi 3 are very versatile. Not just for your light weight Linux installation or Windows 10 IoT, but also for Android experimentation.
On my research list is [WayBack] Raspberry Pi | RTAndroid:
Raspberry Pi 3 This page provides a device-specific tutorial for installing RTAndroid on the Raspberry Pi 3 Model B. Single-board computing devices
It’s an Android 7 (codenamed Android N, now Android Nougat) distribution with Raspberry Pi images (nowadays Raspberry Pi 3, but should run on older as well). Which means you do not have to upgrade your phone to use more recent versions of Android to program against.
–jeroen
via: [WayBack] Fixed by Code: Running Delphi applications on Raspberry Pi 3 and [WayBack] A bit of ravings: https://fixedbycode.blogspot.dk/2016/12/running-delphi-appl…
Posted in Android, Development, Mobile Development | Leave a Comment »
Posted by jpluimers on 2018/01/03
I copied the tables from [WayBack] Memory Performance Information (Windows) as even Microsoft managed to let information “disappear” for EOL products (the en-US version already “disappeared”):
System Memory Performance Information
The following table associates memory object performance counters with the data returned by the memory performance functions in the MEMORYSTATUSEX, PERFORMANCE_INFORMATION, andPROCESS_MEMORY_COUNTERS_EX structures, and with the corresponding information displayed by Task Manager.
| Memory object counter (unless otherwise noted) |
Structure |
Task Manager Performance tab for Windows Server 2008 and Windows Vista |
Task Manager Performance tab for Windows Server 2003 and Windows XP |
| Available KB |
MEMORYSTATUSEX.ullAvailPhys andPERFORMANCE_INFORMATION.PhysicalAvailable |
Subtract usage value shown in Memorygraph from Physical Memory (MB): Total |
Physical Memory: Available |
| None |
MEMORYSTATUSEX.ullTotalPhys andPERFORMANCE_INFORMATION.PhysicalTotal |
Physical Memory (MB): Total |
Physical Memory: Total |
| Committed Bytes |
PERFORMANCE_INFORMATION.CommitTotal |
System: Page Filefirst value (in MB) |
Commit Charge: Total |
| Commit Limit |
MEMORYSTATUSEX.ullTotalPageFile andPERFORMANCE_INFORMATION.CommitLimit |
System: Page Filesecond value (in MB) |
Commit Charge: Limit |
| Free & Zero Page List BytesWindows Server 2003 and Windows XP: This performance counter is not supported. |
None |
Physical Memory (MB): Free |
Not applicable |
| None |
PERFORMANCE_INFORMATION.CommitPeak |
None |
Commit Charge: Peak |
| None |
PERFORMANCE_INFORMATION.HandleCount |
System: Handles |
Totals: Handles |
| None |
MEMORYSTATUSEX.ullAvailPageFile |
None |
None |
| Pool Nonpaged Bytes |
PERFORMANCE_INFORMATION.KernelNonpaged |
Kernel Memory: Nonpaged |
Kernel Memory: Nonpaged |
| Pool Paged Bytes |
PERFORMANCE_INFORMATION.KernelPaged |
Kernel Memory: Paged |
Kernel Memory: Paged |
| Pool Paged Bytes + Pool Nonpaged Bytes |
PERFORMANCE_INFORMATION.KernelTotal |
Kernel Memory: Total |
Kernel Memory: Total |
| Processes (Objects object) |
PERFORMANCE_INFORMATION.ProcessCount |
System: Processes |
Totals: Processes |
| Thread Count (Process(_Total) object) |
PERFORMANCE_INFORMATION.ThreadCount |
System: Threads |
Totals: Threads |
| Cache Bytes + Sharable pages on the standby and modified lists |
PERFORMANCE_INFORMATION.SystemCache |
None |
System Cache |
| Cache Bytes + Modified Page List Bytes + Standby Cache Reserve Bytes + Standby Cache Normal Priority Bytes + Standby Cache Code BytesWindows Server 2003 and Windows XP: Except for Cache Bytes, these performance counters are not supported. |
None |
Physical Memory (MB): Cached |
Not applicable |
Process Memory Performance Information
The following table associates process object performance counters with the data returned by the memory performance functions in the MEMORYSTATUSEX, PERFORMANCE_INFORMATION, andPROCESS_MEMORY_COUNTERS_EX structures, and with the corresponding information displayed by Task Manager.
| Process object counter |
Structure |
Task Manager Processes tab for Windows Server 2008 and Windows Vista |
Task Manager Processes tab for Windows Server 2003 and Windows XP |
| Handle Count |
None |
Handles |
Handles |
| Page File Bytes |
PROCESS_MEMORY_COUNTERS_EX.PagefileUsage |
Commit Size for all processes except the System process. For the System process, Page File Bytes is always 0. |
VM Size for all processes except the System process. For the System process, Page File Bytes is always 0. |
| Page File Bytes Peak |
PROCESS_MEMORY_COUNTERS_EX.PeakPagefileUsage |
None |
None |
| Pool Nonpaged Bytes |
PROCESS_MEMORY_COUNTERS_EX.QuotaNonPagedPoolUsage |
NP Pool |
NP Pool |
| Pool Paged Bytes |
PROCESS_MEMORY_COUNTERS_EX.QuotaPagedPoolUsage |
Paged Pool |
Paged Pool |
| Private Bytes |
PROCESS_MEMORY_COUNTERS_EX.PrivateUsage |
Commit Size |
VM Size |
| Thread Count (Process(<image name>) for the specified image) |
None |
Threads |
Threads |
| Virtual Bytes |
MEMORYSTATUSEX.ullTotalVirtual – MEMORYSTATUSEX.ullAvailVirtual |
None |
None |
| Virtual Bytes Peak |
None |
None |
None |
| Working Set |
PROCESS_MEMORY_COUNTERS_EX.WorkingSetSize |
Working Set (Memory) |
Mem Usage |
| Working Set Peak |
PROCESS_MEMORY_COUNTERS_EX.PeakWorkingSetSize |
Peak Working Set (Memory) |
Peak Mem Usage |
| Working Set – PrivateWindows Server 2003 and Windows XP: This performance counter is not supported. |
None |
Private Working Set |
Not applicable |
| None |
PROCESS_MEMORY_COUNTERS_EX.QuotaPeakNonPagedPoolUsage |
None |
None |
| None |
PROCESS_MEMORY_COUNTERS_EX.QuotaPeakPagedPoolUsage |
None |
None |
| None |
MEMORYSTATUSEX.ullAvailPageFile |
None |
None |
| None |
MEMORYSTATUSEX.ullTotalPageFile |
None |
None |
–jeroen
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The Wiert Corner - irregular stream of stuff 