High CPU load during WiFi Lan transfers? (shibby 1.14)

Discussion in 'Tomato Firmware' started by cloneman, Dec 28, 2013.

  1. cloneman

    cloneman Addicted to LI Member


    Just wondering if it's normal that my e4200v1's CPU is maxed out during high performance WiFi transfers (5Ghz with a good laptop can push 200Mbit upstream).

    This is a Lan-to-Lan transfer (wifi laptop to ethernet-connected fileserver), which results in loads of 3.00 or 4.00.

    I've been told custom firmware can sometimes be a little less efficient at moving a ton of traffic, is this what I'm seeing here?
  2. CardinS2U

    CardinS2U Network Guru Member

    for my case I'm not having any problems. I have alot of asian movies that I move around lan to lan and wifi to wifi just fine. Router still at 0.04 load.
  3. Malitiacurt

    Malitiacurt Networkin' Nut Member

    Sounds about right.

    Few months ago I copied ~1TB from a gigabit-LAN connected desktop to a USB 3.0 connected laptop (2:2 40Mhz, max link rate 300Mbps). The E4200 router load was fluctuating over 1, I didn't pay attention to how high it got.

    (Also note: Probably relevant to the processing capabilities as I noticed I get higher transfer rates when the E4200 is primarily processing RX than TX during large file transfers Eg. I get about 180Mbps throughput transferring from laptop wifi to a ethernet-connected desktop while about 220Mbps throughput transferring from ethernet to Wifi.)
  4. lollekatt

    lollekatt Reformed Router Member

    with a wnr3500Lv2, I noticed that 114 in particular had lot sof issues for me, performance wise.. I don't remember what exactly, but I had to downgrade till 115 came out.
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