Extracting .rar files is slow, too slow

hi
i have problem with extracting files. it takes too much time.
just for ex'  extracting 1G on linux took 3.5 minutes and 40 sec' on windows (on the same hardware)
* i'm using xarchiver 0.4.6
ty

dids22 wrote:
hi
i have problem with extracting files. it takes too much time.
just for ex'  extracting 1G on linux took 3.5 minutes and 40 sec' on windows (on the same hardware)
ty
I've noticed the same problem. Pacman grinds system (firefox) to a halt too.
iirc, I dont think rar'ing was always this slow. Guess it might have something to do with sata, ncq and schedulers.
unrar x 701MB.rar temp2/  4.69s user 4.51s system 4% cpu 3:12.77 total

Similar Messages

  • Extract rar files

    I am new to Mac World and need help with "how to extract RAR files?"  From what I can see, many people recommended UnRARX.  However, I can not get it to work on my MacBook Pro.  Any recommendation on a different program?

    I use MacPAR deLuxe for handling RAR/PAR files. Latest version is Lion friendly
    http://gp.home.xs4all.nl/Site/MacPAR_deLuxe.html

  • How to extract RAR File

    Hi
    i downloaded EP Sneak priview from SDN in the form of RAR  files.when i try to extract using winzip it is giving error.is there any other way
    Prasad

    Yes, you need to get WinRar.  Its just like WinZip.  I believe that .zip and .rar are just different compression technologies.  Here is a link to get WinRar.
    http://www.rarlab.com/download.htm
    Regards,
    Rich Heilman

  • How can I extract .rar files that are dependent on the next in order to finish the extraction?

    Ex: Part 1 finishes, then asks for part 2, so on so forth!
    Trying to open something a colleague sent me, but is rather large. I have 5 .rar files. I cannot extract them seperatly or it errors/fails. Yet I cannot find a program that asks or searches for the next files in the extraction process. Tips? Programs that do? I know that WinRAR has what I need but they do not make a program for Mac, that I can get to work.
    P.s. please keep in mind i'm new to macs, my first one! and i really know nothing mac-specific, howver i know a fair bit about computers.

    It gave me the error when I ran the program, if I need to post a screenie I will. Also if unRarx does work, am I using it wrong? I've got all 5 .rar files together in one folder. Start unrarx, click browse, navigate to the first rar, click extract, then this error at the end:
    INSTRUCTIONS] + [SN] [CodeTempest]/********.dmg - CRC failed
    Total errors: 1
    ******** = name of program, kept private sorry.
    Thanks again.

  • Problem extracting RAR files in Leopard

    I have been unable to extract any RAR files on my computer since installing Leopard. I have tried using a variety of software including Stuffit, UnRarX, and TheUnarchiver but every time I get the message that there's been a format error. This is extremely frustrating and if anyone can recommend an application or method that works, it would be greatly appreciated.

    UnRarX and MacPAR deLuxe
    <http://www.xs4all.nl/~gp/MacPAR_deLuxe/>
    both work fine here with Leopard. Maybe the RAR files are bad or something is wrong with your Leopard installation.

  • Plug-in issues concerning an extracted rar file

    I downloaded a .rar file (documentary) and extracted it with iArchiver. After it was extracted, it was in .avi format and QuickTime could not properly open and play the file with out a component/plug-in. Apple directed me to an Xvid.org website to download what was supposedly needed. The Xvid.org website said it only had downloads for Windows and Linux. I saw on their FAQ page that they currently do not maintain the component for Macs (odd Apple sent me to this?). Anyway, what I am wanting to do is first play this file and later place it on a DVD. Any help is greatly appreciated. This is my first Mac and I am a novice with video and QuickTime, but I am learning. Thanks in advance!
    -Mike

    Try the Perian component for Quicktime...free.
    http://perian.org/

  • How can I extract .rar files?

    I have UnRARX but that doesnt work on the ones I need extracted. I had to use a windows computer to extract the files, but what program for mac will get the job done?

    Stuffit Deluxe was the archive program of choice since System 7 until about MacOS 10.3 - it's not free and not as important as it once was.
    The free Stuffit Expander still does great work for many types of archives. Stuffit Expander 13.0.3 -
    http://www.versiontracker.com/dyn/moreinfo/macosx/10151590
    You can put an alias of the program on your desktop or the Dock. Drag your file onto it and let it go...
    Their description:
    Easily expand and decode all the files you download from the Web or receive in your e-mail. Access StuffIt files, uncompress Zip archives created by WinZip and other zip utilities, decompress tar, gzip and bzip archives, and more. Just drag, drop, and you're done. From BinHex to Zip, StuffIt to MIME, Expander accesses more formats, in less time, with zero hassles.

  • IR Report found 1 million record with blob files performance is too slow!

    we are using
    oracle apex 4.2.x
    Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - Production
    mod_plsql with Apache
    Hardware: HP proliant ML350P
    OS: WINDOWS 2008 R2
    customized content management system developed in apex.when open the IR report have 1 ml rows found and each rows have blob(<5MB as pdf/tiff/bmp/jpg) it will be raising rows in future! but the searching performance is very slow!
    how can increasing the performance?
    how can showing progressing status to user while searching progress going on IR report itself?
    Thanx,
    Ram

    It's impossible to make definitive recommendations on performance improvement based on the limited information provided (in particular the absence of APEX debug traces and SQL execution plans), and lacking knowledge of the application  requirements and access to real data.
    As noted above, this is mainly a matter of data model and application design rather than a problem with APEX.
    Based on what has been made available on apex.oracle.com, taking action on the following points may improve performance.
    I have concerns about the data model. The multiple DMS_TOPMGT_MASTER.NWM_DOC_LVL_0x_COD_NUM columns are indications of incomplete normalization, and the use of the DMS_TOPMGT_DETAILS table hints at an EAV model. Look at normalizing the model so that the WM_DOC_LVL_0x_COD_NUM relationship data can be retrieved using a single join rather than multiple scalar subqueries. Store 1:1 document attributes as column values in DMS_TOPMGT_MASTER rather than rows in DMS_TOPMGT_DETAILS.
    There are no statistics on any of the application tables. Make sure statistics are gathered and kept up to date to enable the optimizer to determine correct execution plans.
    There are no indexes on any of the FK columns or search columns. Create indexes on FK columns to improve join performance, and on searched columns to improve search performance.
    More than 50% of the columns in the report query are hidden and not apparently used anywhere in the report. Why is this? A number of these columns are retrieved using scalar subqueries, which will adversely impact performance in a query processing 1 million+ rows. Remove any unnecessary columns from the report query.
    A number of functions are applied to columns in the report query. These will incur processing time for the functions themselves and context switching overhead in the case of the non-kernel dbms_lob.get_length calls. Remove these function calls from the query and replace them with alternative processing that will not impact query performance, particularly the use of APEX column attributes that will only apply transformations to values that are actually displayed, rather than to all rows processed in the query.
    Remove to_char calls from date columns and format them using date format masks in column attributes.
    Remove decode/case switches. Replace this logic using Display as Text (based on LOV, escape special characters) display types based on appropriate LOVs.
    Remove the dbms_lob.get_length calls. Instead add a file length column to the table, compute the file size when files are added/modified using your application or a trigger, and use this as the BLOB column in the query.
    Searching using the Search Field text box in the APEX interactive report Search Bar generates query like:
    select
    from
      (select
      from
        (...your report query...)
      ) r
      where ((instr(upper("NWM_DOC_REF_NO"), upper(:APXWS_SEARCH_STRING_1)) > 0
      or instr(upper("NWM_DOC_DESC"), upper(:APXWS_SEARCH_STRING_1)) > 0
      or instr(upper("SECTION_NAME"), upper(:APXWS_SEARCH_STRING_1)) > 0
      or instr(upper("CODE_TYPE"), upper(:APXWS_SEARCH_STRING_1)) > 0
      or instr(upper("REF_NUMBER_INDEX"), upper(:APXWS_SEARCH_STRING_1)) > 0
      or instr(upper("DATE_INDEX"), upper(:APXWS_SEARCH_STRING_1)) > 0
      or instr(upper("SUBJECT_INDEX"), upper(:apxws_search_string_1)) > 0
      or instr(upper("NWM_DOC_SERIEL"), upper(:APXWS_SEARCH_STRING_1)) > 0
      or instr(upper("NWM_DOC_DESCRIPTION"), upper(:APXWS_SEARCH_STRING_1)) > 0
      or instr(upper("NWM_DOC_STATUS"), upper(:APXWS_SEARCH_STRING_1)) > 0
      or instr(upper("MIME_TYPE"), upper(:APXWS_SEARCH_STRING_1)) > 0
      or instr(upper("NWM_DOC_FILE_BINARY"), upper(:APXWS_SEARCH_STRING_1)) > 0 ))
      ) r
    where
      rownum <= to_number(:APXWS_MAX_ROW_CNT)
    This will clearly never make use of any available indexes on your table. If you only want users to be able to search using values from 3 columns then remove the Search Field from the Search Bar and only allow users to create explicit filters on those columns. It may then be possible for the optimizer to push the resulting simple predicates down into the inlined report query to make use of indexes on the searched column.
    I have created a copy of your search page on page 33 of your app and created an After Regions page process that will create Debug entries containing the complete IR query and bind variables used so they can be extracted for easier performance analysis and tuning outside of APEX. You can copy this to your local app and modify the page and region ID parameters as required.

  • Large File Encryption is Too Slow!! Help

    I am trying to write some methods to handle encryption of zip files, most are very large (over 200 mb). At first it was attempted to load the file into memory, create a Base64encoded string and encrypt that back out to a file. But not nearly enough memory to do that, and generally as files get larger, it would not be possible to support that. So instead I am opting for something like CipherOutputStreams, read in, write out without buffer. on Small files, this is great (smaller than 1 mb) as it happens instantly. But when it get up to the 200MB minimum size of our zips, it takes hours. Is there any way I can speed this up? (See code below)
    import java.util.*;
    import java.io.*;
    import java.util.zip.*;
    import javax.crypto.*;
    import javax.crypto.spec.*;
    public class EncryptedZipUtil
      private static final String ALGO = "DESede";
      private static final String CIPHER_ALGO = "DESede/CBC/PKCS5Padding";
      private static final byte[] IV_PARAMS = new byte[] {
              127, 111, 13, 120, 12, 34, 56, 78
      private static final String ENCODING = "UTF-8";
      private static final byte[] ENCRIPTION_KEY = "Encryption key must be at least 30 characters long".getBytes();
      private static Cipher getCipher(int mode) throws Throwable
          DESedeKeySpec spec = new DESedeKeySpec(ENCRIPTION_KEY);
          SecretKeyFactory keyFactory = SecretKeyFactory.getInstance(ALGO);
          SecretKey theKey = keyFactory.generateSecret(spec);
          Cipher dcipher = Cipher.getInstance(CIPHER_ALGO);
          IvParameterSpec IvParameters = new IvParameterSpec(IV_PARAMS);
          dcipher.init(mode, theKey, IvParameters);
          return dcipher;
      public static ZipInputStream getDecryptedZipStream(File f) throws SecurityException, IOException
        FileInputStream fin = new FileInputStream(f);
        return new ZipInputStream(new CipherInputStream(fin,getCipher(Cipher.DECRYPT_MODE)));
      public static void streamEncryptZipFile(File zipFile, File outzip) throws Throwable
        FileInputStream fin = new FileInputStream(zipFile);
        CipherOutputStream cos = new CipherOutputStream(new FileOutputStream(outzip),getCipher(Cipher.ENCRYPT_MODE));
        while(fin.available() != 0)
          cos.write(fin.read());
        fin.close();
        cos.close();
      public static void streamDecryptZipFile(File e_zipFile, File outzip) throws Throwable
        CipherInputStream cin = new CipherInputStream(new FileInputStream(e_zipFile),getCipher(Cipher.DECRYPT_MODE));
        FileOutputStream fos = new FileOutputStream(outzip);
        int the_byte = -1;
        while((the_byte = cin.read()) != -1)
          fos.write(the_byte);
        cin.close();
        fos.close();
      public static void main(String[] args) throws Throwable
        EncryptedZipUtil.streamEncryptZipFile("D:\\ziptest\\original.zip","D:\\ziptest\\encrypted.zip");
        EncryptedZipUtil.streamDecryptZipFile("D:\\ziptest\\encrypted.zip","D:\\ziptest\\decrypted.zip");
    }Like I said, the code here works great with small files. Quick, correct and simple. My Machine is 2.8ghz P4, with 1024mb Ram, and when I run this on my larger files, it uses 99% CPU and no memory in addition to the standard JVM Heap.
    Any advice would be greatly appreciated

    Nice answer, but for additional duke points I've though of an issue with it: although this defeintly speeds up encrypt/decrypt time, there is no longer any way for me to access this file as a stream directly: if you see the method getDecryptedZipStream(File f), since the file is generally a zip, getting a stream in this manner wont work if we want to thumb through the contents and extract entries on the fly, because now the encryption is done in chunks rather than by bytes which the underlying stream would be should we want to browse the zip. So this solution doesn't solve all aspects of the issue. My alternative was then to imagine that I would enncrypt the individual contents of the zips prior to zipping and leave the zip intact. I could the browse the zip but can not access any of the data without decrypting each file first. I don't know if that is the best solution as of yet.

  • When I extract .rar files they always come out in .exe

    okay, here i downloaded tons of things like audio files from safari and i got it in form of .rar, its fine though 'cause I got rar-extracting app "unrarX".#
    Anyway, the thing is whenever I extract, I always got them in .exe which is bad 'cause I don't know what I can do with this format.
    btw, I don't really think the problem lies in the app I mentioned.

    Hi elletequila,
    Have you try to rename the extension into audio such as MP3?

  • File.length() too slow?

    I'm working on an application that needs to process directory listings on network fileserver, looking for files and directories, and getting basic info about files found (size, last modified date).
    I'm trying to use java.io.File.list(java.io.FileFilter) with java.io.FileFilter returning file.isDirectory() or file.isFile() to get a list of just files or directories, and try to get the rest of file information later for each of the returned Files. However, when it gets to a directory with a lot of files (13000+), it seem to be unacceptably slow. I have tracked it down to File.length(), taking up to 80ms per file (!), which amounts to only about 13 files per second.
    It's not a problem of the platform (Win XP), directory listing contianing all information I need takes less than 3 seconds for this big directory, while getting the same through Java APIs (calling isDirectory(), isFile(), length() and lastModified() within the FileFilter callback ) takes ages.
    Is there a better way to get a directory listing, without being orders of magnitude slower than necessary? I can think of calling native dir command and parsing the output, but that is a mess...

    I have tracked this down to native implementation of File.length() - VC++ runtime function _stati64 which they use to get file length is too slow.
    Why dont they use Windows API? I have tested that getting file size using GetFileAttributesEx() is at least 50x faster than _stati64 for my file!                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       

  • File sharing too slow

    Hi,
    I have 2 macs connected via hub. My internet connection is very fast and everything is ok but file sharing is too slow. 1GB takes 8 hours to be transfered.
    Any fix?
    Thanks!

    yup same here, 9 gb file shared via airport extreme from my Macpro 8proc to my 17" Macbook Pro was going to take 4 hrs?????? doing it via firewire now, 10 minutes.
    is there a network setting in missing as both machines obviously have 902.11N and the extreme is setup for N (B/G compatible)??
    jas

  • Question about RAR files...

    Can the OS extract RAR files on it's own? I can't, I need to use whatever program is available. A friend of mine says his OSX 10.4 does. I can't find that would do it in the OS. My .zip files are associated with BOMArchiveHelper. Would I have to associate RARs with this, and if so, how would I do that?
    Thanks a million.
    G5 Dual 2.5   Mac OS X (10.4)  

    Hi - try this http://unrarx.sourceforge.net/

  • Opening rar files on mac

    How to open/extract rar files on mac Lion? Is there any free app?

    UnRarX - Mac OS X RAR Extraction Utility

  • Does leopard support rar file

    Does leopard support rar file? or I need to download third party software to extract rar file.

    Archive Assistant should extract the contents of a .rar archive; however, if there are multiple segments it will not join them back together.
    -Douggo

Maybe you are looking for

  • Exchange stops receiving SMTP emails when sending large amount of invoices.

    We have an exchange server and a computer with an invoicing program loaded on it. At various times of the month, the invoicing program will go through our database and generate email invoices. The problem comes when we try to send them all at once. (

  • Bootcamp 3.1

    Hi all, I am completly confused about this whole thing. I have tried to software update and it keeps coming up with no new updates so i go to bootcamp and it says verion 3.0.1 which is not the current version, 3.1. S how do i download and install boo

  • Automatic Posting accounts not allowed when G/L Account is entered in LIPS

    Dear all, In order to override the standard G/L account determination when PGI a delivery, we developed a routine to write the G/L account devired by the system and populate LIPS-KONTO with the account we want to post. This is working perfectly as so

  • AC 10.1 Empty screen on User Level analysis

    Hi all, We have migrated our 5.3 Access Control System to 10.1 and all the post-installation steps are applied. We loaded the user and roles from our ERP System, created rules and generated them for our system. Parameter 1027 – Enable offline risk an

  • Opening downloaded dmg files

    Any file that I download that is dmg will not open. I get the message that it failed to mount. If I check get info on the file it says it should open with disk image mounter. when I click on it it eventually says device not configured. I tried openin