2007-03-22, 07:27 | Link #21 | |
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Anyways with the download part so when you use bitorrent its does not use the hard disk space? And one more thing cpu usage is different from hard drive usage right? I mean for example when your ram is slow its takes up the space of your HDD Im using [764mb of ram] Finally it's not stressy for the Hdd if its downloading torrents for 24hrs??? Edit: I was rebooting my pc and suddenly the boot was slow all of the sudden this happened.. Spoiler:
Last edited by toru310; 2007-03-22 at 07:53. |
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2007-03-22, 08:06 | Link #22 |
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Bittorrent always will use hard disk space (otherwise you'ld never be able to store files on your hdd).
Well I should explain some basic things. What is preallocation and why does it help to keep the drive quite defragmented: Preallocation of files means, that the files you want to download are written completely empty to disk (without any data, just so that the space is already taken, before any data actually was written to it). The operating system (e.g. Windows), tries to write such a 0-filled file as sequential as possible (since it is a continuous stream of data). When the space is not preallocated, the file grows bigger with each new data block coming in. There will be a) file internal fragmentation, because the data blocks usually arrive rather random when downloading torrents (means a data block, near the end of the file can be physically stored next to a data block near the beginning of the file... when you want to read such a file later, the arm moves like crazy to read the file in its natural order) b) file external fragmentation, because of non-continuous data streams. If one downloads only one file, and there is no other disk writing activity on the system (while the file loads), there is no issue. Lets imagine you'ld download 2 files with bittorrent... both are not preallocated. Lets say data packets coming in like this: packet_1_file1, packet_100_file2, packet_42_file1, packet_25_file2, packet_31_file1, packet_14_file1, packet_13_file2... since the files were not preallocated the OS would store them exactly in this order... so if you later want to read file1, the arm had constantly to skip parts of file2 (not too stressy, but in conjunction with the file internal fragmentation (a) its a lot more stressy). Preallocation helps to prevend a) and b). Why use a cache? Once you cache a file, it is not directly written to disk (even small caches can help). There is at least one write operation per incoming data block, but any write/read operation besides, is technically unecessary once the cache has the data. So if you e.g. upload a data block to different sources, you don't have to reread it every time from disk. Also writing parts of blocks (usually bittorrent clients download several at a time) is not so stressy, that means in a preallocated file, the arm does not have to jump in different positions in the file just to write every piece of new block data. (the block is to be completed in the cache and only then written to hdd). Even small RAM caches can be very usefull.
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2007-03-22, 08:41 | Link #23 | |
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2007-03-22, 09:09 | Link #24 | |
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And when you start regedit, what are the entries of: HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\notify edit: http://www.snapfiles.com/get/shellexview.html There you can see which shellextensions are tried to be loaded (if there is one from a previous Windows installation, there might be trouble). How did you actually install Windows? Did you rearrange Documents and Settings folder somehow, or did you completely move the Windows directory, or maybe you erased some version of Windows, that had components linked to your current version?) Thats all pretty strange.
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Last edited by Jinto; 2007-03-22 at 09:20. Reason: found something regarding shell extensions... |
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2007-03-23, 03:51 | Link #25 | |
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Ok so this is how it happened I recovered my files from the other drive which I accidentally formatted so all the files are gone but I recovered it and the instruction said that when you finished getting all your files back you should reinstall windows and I did so I just over righted It and done...P.S. Not using a fake XP... |
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2007-03-23, 04:23 | Link #26 |
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Hm, thats not what I wanted to imply (its not related to using a "fake XP"). Did you by coincidence recover parts of the old documents and settings folder? Well it seems not to be of any concern now (since it is running), I am just curious.
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2007-03-23, 08:40 | Link #28 | |
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Thanks for the help btw!! Edit: One more thing the program you showed me what's that for? And when you say "there might be trouble" what do you mean? A question how can your computer crash??? Any reason why this things happen? Last edited by toru310; 2007-03-23 at 09:11. |
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2007-03-23, 13:55 | Link #29 | |
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I've crashed my computer about four or five times over a span of using Windows 95, 98, and ME. I haven't experienced a crash with XP. Whether this is due to my becoming a more experienced user, or whether Windows has become more stable, I can't really say. I do believe that the operating systems are more robust, however, and that a system crash is more likely to be caused by malware than user error if you're a Windows user. So practice smart computing, make sure you have a good and properly configured firewall and virus scanner, and maybe run a spyware sweep every once in a while.
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2007-03-23, 14:23 | Link #30 | |
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A computer crash can be induced by malfunctioning hardware or software or human operator. Good robust software tries to catch as many malfunctions as possible. That means even so errors occur, the system tries to e.g. graceful degrate/rejuvenate/microreboot/selective retry/use recovery blocks/recovers via checkpointing/uses state scrubbing (there are many more possibilities to handle certain malfunctions). If the malfunction is too severe, and the system cannot recover from the effects caused by the malfunction, then the PC will crash. Hardware errors are often hard to deal with, so recovering from severe hardware errors is often impossible. Software errors are often easier to deal with (if you or the system knows how). In future systems will have something like operator undo, then the human component in the system is taken care of too The program I was linking there, can list the shell extensions that are loaded at startup. I dont know if you ever encountered something like this, but some programs add stuff to your explorer. E.g. when you use mouse button right click, you'ld see something like "add to rar-archive" or the like... such things are shell extensions (there are other shell extensions which are not visible...). If such an extension is broken, but still linked to the explorer, then a winlogon error can occur. I think that explains, why I mentioned it, after you posted your error screen
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2007-03-23, 18:32 | Link #31 | |
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2007-03-23, 18:40 | Link #32 |
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Some hdds are very loud other not. The noise level I'ld not be too concerned about. What is far more important is, does it sound repetitive (like trying to reread a certain part for several times). This is a very distincitve sound, I think you will recognise it once you hear it (drrrrrd, short break, drrrrrrd, short break, drrrrrrd... very repetitive (like 10 or more times) and always the same length of the "drrrrrd, short break" parts)
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2007-03-23, 18:56 | Link #33 | |
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One last question you have 2 drives c: and d:, c: has your os and etc and d: is a slave drive..So the question is when you watch a fansub in c and he gets the data from d is that stressy? |
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2007-03-23, 19:09 | Link #34 | |
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2007-03-24, 19:13 | Link #36 |
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Ok this is so weird again, when I'm booting my pc something pop up in the booting it says recovered windows files or something is that what you call a bad sector? This happened to me before but with a crappy os and then suddenly all my recently used programs are all gone in the start menu ^^(the programs are all intact in my pc and working). Is this a big problem or just a temporary problem that can be ignored?
Side topic: what blue screen of death or bsod? |
2007-03-24, 19:59 | Link #37 |
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Well, not necessarily. See, when you have a bad sector, then files can go missing. As a result, Windows tries to recover them. But there are many other reasons, why the files were corrupted/went missing. It would be a good idea to look in the Windows event viewer. Maybe some severe error is listed there (that could be a good hint, to find the actual reason).
A blue screen of death is a blue error screen, that is shown, before Windows stops to operate and reboots. It usually is a safety mechanism to prevent consequential damage of errors that are violating important contracts/constraints.
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2007-03-24, 22:00 | Link #38 | |
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Edit: how can you view event viewer I forgot... |
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2007-03-24, 22:17 | Link #39 |
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Fixing bad sectors. Well if the sector is bad due to a permanent harware failure, there is only one way to fix such a sector... making it inaccessible. Usually the sector will be treated like a no-go zone then. A bad sector that is never used isn't so bad right?
However, I'ld rather buy a new hdd, instead of waiting for the next error on the drive (and wasting my time with fixing these errors). I did this once with one of my Maxtor drives. This drive went from bad to worse, I gave up when I could not write to the drive anymore. howto: event viewer http://support.microsoft.com/?scid=k...08427&x=7&y=18
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2007-03-24, 22:53 | Link #40 | |
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With the windows have recovered the file in booting sequence is that a threat? or should I just ignore it? It's kinda weird because all the recent short cuts in the start button disappeared weird... Also if I go to event viewer I can see the errors right? So what else can I accomplish there? |
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