Top showing virtual memory usage of hundreds of gigabytes

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Multi tool use

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On a new virtual machine, top shows that a process of mine consumes 100 GB of virtual memory. I've read that it's possible because of overcommit, however, it's a bit too much. I've never seen anything like this, especially in a VM having just 6 GB real memory, 2 GB swap and a single 40 GB HD partition.



unreal_memory



The funny process with 101 GB VIRT is Eclipse IDE (started a few minutes ago) and there's another one, WebKitWebProcess with 98 GB VIRT. All other processes have sane VIRT values of about 1-2 GB. All three tools seem to agree on that: top, htop and ps.



  • Is there any good reason for the processes to request that much virtual memory?

  • Isn't such behavior detrimental to the system?

  • What are the current limits on the total virtual memory?

Details: Linux 4.15.0-38-generic x86_64 GNU/Linux, Linux Mint 19 Tara






memory top htop






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    up vote
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    down vote

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    On a new virtual machine, top shows that a process of mine consumes 100 GB of virtual memory. I've read that it's possible because of overcommit, however, it's a bit too much. I've never seen anything like this, especially in a VM having just 6 GB real memory, 2 GB swap and a single 40 GB HD partition.



    unreal_memory



    The funny process with 101 GB VIRT is Eclipse IDE (started a few minutes ago) and there's another one, WebKitWebProcess with 98 GB VIRT. All other processes have sane VIRT values of about 1-2 GB. All three tools seem to agree on that: top, htop and ps.



    • Is there any good reason for the processes to request that much virtual memory?

    • Isn't such behavior detrimental to the system?

    • What are the current limits on the total virtual memory?

    Details: Linux 4.15.0-38-generic x86_64 GNU/Linux, Linux Mint 19 Tara






    memory top htop






    share























      up vote
      -1
      down vote

      favorite









      up vote
      -1
      down vote

      favorite











      On a new virtual machine, top shows that a process of mine consumes 100 GB of virtual memory. I've read that it's possible because of overcommit, however, it's a bit too much. I've never seen anything like this, especially in a VM having just 6 GB real memory, 2 GB swap and a single 40 GB HD partition.



      unreal_memory



      The funny process with 101 GB VIRT is Eclipse IDE (started a few minutes ago) and there's another one, WebKitWebProcess with 98 GB VIRT. All other processes have sane VIRT values of about 1-2 GB. All three tools seem to agree on that: top, htop and ps.



      • Is there any good reason for the processes to request that much virtual memory?

      • Isn't such behavior detrimental to the system?

      • What are the current limits on the total virtual memory?

      Details: Linux 4.15.0-38-generic x86_64 GNU/Linux, Linux Mint 19 Tara






      memory top htop






      share













      On a new virtual machine, top shows that a process of mine consumes 100 GB of virtual memory. I've read that it's possible because of overcommit, however, it's a bit too much. I've never seen anything like this, especially in a VM having just 6 GB real memory, 2 GB swap and a single 40 GB HD partition.



      unreal_memory



      The funny process with 101 GB VIRT is Eclipse IDE (started a few minutes ago) and there's another one, WebKitWebProcess with 98 GB VIRT. All other processes have sane VIRT values of about 1-2 GB. All three tools seem to agree on that: top, htop and ps.



      • Is there any good reason for the processes to request that much virtual memory?

      • Isn't such behavior detrimental to the system?

      • What are the current limits on the total virtual memory?

      Details: Linux 4.15.0-38-generic x86_64 GNU/Linux, Linux Mint 19 Tara






      memory top htop




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      maaartinus

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