Netgate Discussion Forum
    • Categories
    • Recent
    • Tags
    • Popular
    • Users
    • Search
    • Register
    • Login

    2.3.2 Upgrade - internet is suddenly super slow

    Scheduled Pinned Locked Moved Problems Installing or Upgrading pfSense Software
    3 Posts 2 Posters 1.4k Views
    Loading More Posts
    • Oldest to Newest
    • Newest to Oldest
    • Most Votes
    Reply
    • Reply as topic
    Log in to reply
    This topic has been deleted. Only users with topic management privileges can see it.
    • A Offline
      andy_vdg
      last edited by

      Hi everyone,

      Hope I can get some help here. I upgraded to 2.3.2 a few days ago and the internet speeds have dropped tremendously.
      I'm on a 100/100 fibre connection but am getting more like 2/8Mbps at the moment. That's on all laptops, desktops, phones, tablets etc. All laptops and desktops are wired so it's not an issue with the AP.
      I haven't touched anything else except for upgrading.

      Here's what I've looked at so far:

      The forum… found some posts put none that really seem to have the same problem as myself.

      Top looks fine

      last pid: 16801;  load averages:  0.93,  1.05,  1.13                                                 up 0+00:43:18  22:20:38
      61 processes:  1 running, 60 sleeping
      CPU:  0.6% user,  0.0% nice,  0.0% system, 19.4% interrupt, 80.1% idle
      Mem: 298M Active, 1073M Inact, 202M Wired, 210M Buf, 378M Free
      Swap: 4096M Total, 4096M Free
      
        PID USERNAME  THR PRI NICE   SIZE    RES STATE   C   TIME    WCPU COMMAND
      13728 root        1  20    0 21856K  3004K CPU1    1   0:00   0.10% top
      30815 root        2  20    0   515M   104M nanslp  3   0:22   0.00% snort
      12053 root        2  20    0   515M   106M nanslp  2   0:19   0.00% snort
      12643 squid       1  20    0   143M 73276K kqread  1   0:13   0.00% squid
      22278 root        1  20    0 16676K  2272K bpf     1   0:03   0.00% filterlog
        749 root        1  20    0 14508K  2312K select  2   0:03   0.00% syslogd
      31406 root        1  20    0 39136K  7352K kqread  1   0:02   0.00% nginx
      31439 root        1  20    0 39136K  7424K kqread  3   0:01   0.00% nginx
      49309 root        1  52   20 17000K  2396K wait    2   0:01   0.00% sh
      [...]
      
      

      Turned off Snort/Squid/Squidguard/Sipproxd which are the only packages I have installed - made no difference.

      I'm at a loss as to where to look to try and find out what the problem is.
      Any help as to where to look next would be greatly appreciated.

      1 Reply Last reply Reply Quote 0
      • A Offline
        andy_vdg
        last edited by

        Did some more digging…
        https://doc.pfsense.org/index.php/Low_Throughput_Troubleshooting

        So it seems one of the IRQ processes was using around 80% of a CPU core -

        12 root    -84    -    0K  400K CPU0    0  47:11  79.30% [intr{irq7: ppc0}]

        So I followed these instructions:

        Another item to check is under System > Advanced on the Networking tab. Ensure that the boxes are checked for Disable hardware TCP segmentation offload and Disable hardware large receive offload. If they are already checked, try toggling Disable hardware checksum offload. If no difference is observed, toggle it back.

        Turns out they were already disabled and I unchecked the boxes next to both Disable hardware TCP segmentation offload and Disable hardware large receive offload - rebooted.

        Now the high IRQ usage has not gone away but I have full speed again.
          12 root    -84    -    0K  400K WAIT    0  11:14  74.66% [intr{irq7: ppc0}]

        1 Reply Last reply Reply Quote 0
        • DerelictD Offline
          Derelict LAYER 8 Netgate
          last edited by

          That's the parallel port driver and should be doing nothing. I believe I remember some previous reports of it spinning on interrupt like that. See if you can disable any parallel ports in your BIOS.

          Chattanooga, Tennessee, USA
          A comprehensive network diagram is worth 10,000 words and 15 conference calls.
          DO NOT set a source address/port in a port forward or firewall rule unless you KNOW you need it!
          Do Not Chat For Help! NO_WAN_EGRESS(TM)

          1 Reply Last reply Reply Quote 0
          • First post
            Last post
          Copyright 2025 Rubicon Communications LLC (Netgate). All rights reserved.