kernel parameters

  1. R

    Does the UDP socket in FreeBSD actually have a send buffer like Linux?

    I noticed that FreeBSD does not have kernel parameters for adjusting the send buffer size like Linux does. The parameter kern.ipc.maxsockbuf does not seem to affect UDP sending behavior in this. While reading the source code, I found that the UDP socket seems to only use the buffer size to...
    • refly
    • Thread
    • buffer kernel parameters socket source code udp
    • Replies: 0
    • Forum: Networking
  2. Z

    Solved DTrace cannot get correct values of ZFS tunable variables (e.g. zfs_dirty_data_max, zfs_txg_timeout)

    I cannot use the script from ZFS dtrace scripts to print the correct value of zfs_dirty_data_max, and the output is as follows: CPU ID FUNCTION:NAME 2 85224 none:txg-syncing 41MB of 0MB used 0 85224 none:txg-syncing 25MB of...
    • zldrobit
    • Thread
    • dtrace kernel parameters tunable zfs
    • Replies: 3
    • Forum: General
  3. JMOR

    Solved Where are located the opt_*.h files?

    Hello, I am looking at building my custom kernel. In order to set the proper options in MYKERNEL configuration file, for example the CPU type parameter: 'cpu'. The manual page config says to look in the file sys/conf/options.amd64 (I have a AMD Ryzen 9 5900X) for the possible options for CPU...
  4. I

    IRQPOLL Like Configuration for WLAN Card

    Two years ago i bought a WLAN card model Bcm94352z with the BCM4352 Broadcom chipset to use it on macOS (Hackintosh). It turns out that the card worked properly on macOS but didnt work on Ubuntu nor on any Linux distro. 2 years later i managed to get it work on Linux by adding the "irqpoll" or...
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