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FTP from shell = high CPU usage



  • Hello,

    I registered on the forum to report a couple of problems I’ve been having with Powerarchiver 2012 Professional.

    I am glad to see that the first problem has already been taken care of, namely, the hanging of PASTARTER.EXE introduced with 13.01.03 - fixed in 13.01.04.

    The second problem is high CPU usage when using “FTP It…” shell extension. I made a few PA backup scripts which make encrypted 7z archives, copy these archives to two other locations (nice feature), and then FTP these archives to a remote FTP server (another nice feature). All is well, with regard to CPU usage, when PABackup.exe is doing the FTP file transfer, but when I right-click a file and click an FTP profile the CPU usage of POWERARC.EXE doing the file transfer goes way up - maxing out a core if I set process affinity to just one core. I cannot tell you when this problem started since I have not been using this feature for long, and I only noticed this summer due to high revving CPU fan.

    Hopefuly this is something that can be fixed in a future release.

    Best regards,

    iDunk


  • conexware

    @iDunk:

    Hello,

    I registered on the forum to report a couple of problems I’ve been having with Powerarchiver 2012 Professional.

    I am glad to see that the first problem has already been taken care of, namely, the hanging of PASTARTER.EXE introduced with 13.01.03 - fixed in 13.01.04.

    The second problem is high CPU usage when using “FTP It…” shell extension. I made a few PA backup scripts which make encrypted 7z archives, copy these archives to two other locations (nice feature), and then FTP these archives to a remote FTP server (another nice feature). All is well, with regard to CPU usage, when PABackup.exe is doing the FTP file transfer, but when I right-click a file and click an FTP profile the CPU usage of POWERARC.EXE doing the file transfer goes way up - maxing out a core if I set process affinity to just one core. I cannot tell you when this problem started since I have not been using this feature for long, and I only noticed this summer due to high revving CPU fan.

    Hopefuly this is something that can be fixed in a future release.

    Best regards,

    iDunk

    thanks a lot, we will try to reproduce it and let you know if we have any questions.

    Does the actual FTP upload finish?



  • @spwolf:

    thanks a lot, we will try to reproduce it and let you know if we have any questions.

    Does the actual FTP upload finish?

    Yes, the upload always finishes ok. Process Explorer shows a high cycles delta at offset 0x875470, if that is of any help.

    System info: Windows 7 Pro, Core i5 750, 8GB RAM, latest NIC driver
    Antivirus is Kaspersky Internet Security 2013 (happened also with 2012). I think I can exclude the antivirus/firewall as the culprit since all Conexware programs are in the trusted group and yet pabackup.exe and powerarc.exe behave differenty doing FTP.


  • conexware

    ok, sounds good… we will let you know when our testing goes though it… if we can reproduce it, it will probably be fixed in next release (few weeks).


  • conexware

    I was able to reproduce this and have logged it in.
    thanks for the detailed report!



  • @Mili:

    I was able to reproduce this and have logged it in.
    thanks for the detailed report!

    Hi,

    I’m a new user of PowerArchiver and I’m experiencing this too however I’m not activating any extensions - I performed a clean install on two computers, and both frequently go to 50 - 51% CPU usage. Windows 8 on both machines.

    Any suggestions?

    Thanks.


  • conexware

    @phirephoto:

    Hi,

    I’m a new user of PowerArchiver and I’m experiencing this too however I’m not activating any extensions - I performed a clean install on two computers, and both frequently go to 50 - 51% CPU usage. Windows 8 on both machines.

    Any suggestions?

    Thanks.

    disable pa starter from starting, it is issue that was solved in last release. Ctrl-alt-del and kill pastarter.exe process.

    pastarter was not compatible with win8 so we had to rewrite it completely. You can disable its startup in Options> Configuration> PA Queue.



  • @spwolf:

    disable pa starter from starting, it is issue that was solved in last release. Ctrl-alt-del and kill pastarter.exe process.

    pastarter was not compatible with win8 so we had to rewrite it completely. You can disable its startup in Options> Configuration> PA Queue.

    Thanks, I’ll give that a shot!



  • High CPU usage with FTPit still present in 13.03.01 and 13.03.02 😞


  • conexware

    thank you, we got stuck on 2013 for a while, but now we are good to go.



  • The problem is still present in 14.0.17.0.



  • Any chance of fixing this in 2013 final?

    attachment_p_31601_0_pa14.0.31_ftpit_shell_extension.png


  • conexware

    aaaaaa!

    will check it out this week, final or no final.



  • Hi!

    Sooo, is there a chance of this ever getting fixed? I just tried with 15.0.35 and the same problem is present, as always. FTP it… shell extension maxes out a core. Shame, such a nice little feature but not really usable for large files, mostly for power issues.

    Thanks


  • conexware

    I will check with team whats going on here.


  • Banned

    I have ample CPU, so it does not create a problem for me.

    I can verify CPU usage spikes (goes from 1-2% to 25%).

    With FileZilla, it never moves my CPU about 2%.

    I think, though, that the problem is more general than FTP. Just compressing a folder from the shell jacks my CPU up to almost 25%.

    And . . . Compressing a folder from within the PA main window gets the CPU to 29%! Maybe it is the nature of multi-core compression. Not sure.


  • conexware

    there was a specific problem with ftp where cpu would spike with no reason.
    For ZIP compression, it is best to use all of the cpu 🙂



  • Yes, compression will do that to a cpu 😉 But we are talking about ftp file transfers here. Something which should not task a cpu so much.


  • conexware

    Tested with the newest RC 2015 and putting on the list for the dev team to check out for the next update.
    Thanks for bringing it up 🙂


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