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Performance is really really bad when long lines are involved

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  • Performance is really really bad when long lines are involved

    I tested this on ArchLinux, but not sure if it's a Linux only issue or an issue across all platforms.

    Basically if you have files that contain long lines without any spaces in them, then Beyond Compare grinds to a halt for a long time.

    I attached 2 test files.

    If I run
    bcompare orig.txt modified.txt
    , Beyond Compare really cranks up the CPU on my laptop and is not responsive for a long time.

    On the other hand, using DiffMerge the result is instant
    diffmerge orig.txt modified.txt
    Attached Files

  • #2
    Thanks for the report. This seems to be an issue specific to Linux and your files. I'll open a tracker entry to get this fixed.
    Aaron P Scooter Software


    • #3
      This problem is exist so long, I have to avoid longer line file is compare with bcompare.

      Though, this not a big things for me...


      • #4

        Thanks for the report. We will soon have a nightly build to help with this issue. This build is not intended for day to day use, but it would be helpful if you wanted to help us test. Please email us at if you are interested with a link back to this forum thread.
        Aaron P Scooter Software


        • #5
          The Linux performance issue with long lines is fixed in version 4.1.7.
          Chris K Scooter Software