This is the last time I will ever even read the release-notes of ReactOS, as I have moved on to more interesting and modern projects like most others. Really slow development cycle.
Might have been interesting in Is there a point in developing this anymore? It wants to mimic the outdated Windows XP! I've been watching this for a year now. Awesome project - ten years ago. Dead issue because of glacial progress. Ubuntu Just shut it down and let it go since it's obvious the heart and the drive just isn't there. ONE star for a great idea with NO execution.
A very good idea that has missed its time. The development of this OS is much too slow to even begin to keep up. A good try I might add, but much too slow. I would love to see competition for Windows 7, but is competition to Windows NT really useful? Development is far too slow to be of any real value to users. By the time it reaches stability, there will be no programs to run on it unless you resurrect old floppy disks on a dusty shelf. The idea of an open source windows OS is just too much to pass up.
But the reality is that this projects progress is just way to slow to really serve as a true Windows Alternative. I praise the effort but hey are still stuck on Windows while we are already in the 2nd iteration of the new kernel ie Windows 7. By the time it catches up with the 1st iteration of that Kernel, aka Vista, we'll already be at Windows 10 with something probably completely different.
I only accepted this one as I can make it a sticky post for the next intelligent ideas regarding that crap code. More of these ideas will not help your account to survive very long. ReactOS is still in alpha stage , meaning it is not feature-complete and is recommended only for evaluation and testing purposes. Post by Sbal » Sat Sep 26, pm Sure Why do you create several accounts?
In theory I must ban both now! I am close to do that already! My reply was not militant. It was a FACT. That facts are not your strength is confirmed by the rest of your post. If you don't believe me then check the law. Not even that is needed though. We have a rule here at ReactOS as already posted. You look at the code? You worked for MS? Blink maintain connectivity of six lists of pages, about which mentioned above, are used when u3. If u3. ShareCount and contains the number of users - the number of PTEs referring to this page.
WsIndex - the index of the page in the working set or 0 if the page in nepodkachivaemoy memory area. Event - address of the facility event, which will expect the memory manager to allow access to the page. If u4. ReferenceCount contains a reference count of the valid PTEs pointing to this page, or for use within the memory manager for example, during the page write to the disk, the reference count is incremented.
For page tables the ShareCount is usually bigger]. PteAddress contains a back link to the PTE, which indicates that the physical pages.
Lower bits means that the PFN is removed. OriginalPte contains the original PTE, used to restore it to the unloading of pages. In addition the union has yet u4 and the following additional flags:. If the page is in the list of zero or idle pages, the second association is treated as a pointer linking the lists of zero or free pages for the secondary color the so-called Secondary Color.
The difference in color is made for the following reason: the number of colors is set to the number of pages that can contain a cache memory of the second level of the processor and the difference is that the two neighboring memory allocations are not used the pages of one color for the correct use of cache.
Better written to help assimilate the example contained in the annex to the article. Code examples are well otkommentirovan and, given the material article, should not cause problems. However, placing all data permanently in the physical memory is unprofitable - to some this treatment are rare, the kind often, sometimes to a memory space larger than the available physical memory in the system.
Therefore, in all modern operating system has a mechanism to paging. He called differently - unloading, swap, swap. In Windows, this mechanism is part of the memory manager that manages the swap, and a maximum of 16 different paging file paging files in the terminology of Windows.
In Windows there is pumping and nepodkachivaemaya memory, respectively, they can and can not be unloaded in the disc. Memory is pumping in the nucleus can be distinguished from the pool of memory is pumping, nepodkachivaemuyu - respectively from the pool nepodkachivaemoy for small allocation. In user mode memory is pumping normally, unless it was blocked in the working set by calling VirtualLock.
Each page file in this array represented a pointer to the structure of the form:. The annex to the article is an example of the withdrawal otkommentirovanny field structure MmPagingFile [0] working system. When the system needs a page and free pages, there are few, there is a truncation of the working sets of processes it occurs for other reasons, it is only one of them.
Pages on your watchlist ModifiedPageList must first be recorded flow records of modified pages to disk, and only then they are transferred to StandbyPageList and can be used for the discharge meets function MiGatherPagefilePages. Pseudocode remove pages from the working set strongly cut code MiEliminateWorkingSetEntry and caused of its functions :.
In the annex to the article there is a program with source code to demonstrate the truncation of working sets of user mode by calling SetProcessWorkingSetSize hProcess, -1, In contrast, when the flow turns to a page that was removed from the working set is an error page. If the page has been deleted from the working set, but have not yet been written to disk, or it does not need to be stored on disk, and it is still in physical memory state Transition PTE , it is called MiResolveTransitionFault and PTE simply translated into a state of Valid appropriate adjustment MMPFN and removal of pages from the list of idle or modified pages.
If the page has been written to disk, or it did not need to be stored on disk and it is already used for some other purpose state Paged-Out PTE , it is called MiResolvePageFileFault and the read operation is initiated by a page from the paging file to the withdrawal of corresponding bit in the bitmap. Working set by definition is a set of resident pages of the process the system.
There are three types of working sets:. When the system needs to free the page, initiated by the truncation of working sets - Pages are sent to the lists of Standby or Modified, depending on whether or write to them, and PTE converted into a state of Transition.
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