Rezultati pretraživanja
  1. 7. kol 2019.
  2. 31. sij

    On CentOS 7.7 you can use ('s cousin) to plumb the kernel for NFS activity to associate I/O to individual UNIX processes, users, etc. nfsiosnoop v1.0 -- Pictured: Green = action, Cyan = Read, Red = Write

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  3. 9. lis 2019.

    Great Blog post about tracing MariaDB (and MySQL) with bpftrace by Valeriy Kravchuk

  4. "[…] is a new -based tracing tool […] lets you analyze what a system is doing behind the curtain […] This article covers some basics about bpftrace, and how it works. Read on for more information and some useful examples. […]"

  5. 9. kol 2019.
    Odgovor korisnicima

    If Kernel is >= 4.4. try to nail the problem.

  6. 7. svi 2019.

    My talk about at is available! Mainly a "Tools-in-Action" with /tools, and -trace demos! (In French)

  7. 4. sij
  8. 3. velj

    I have created a repo for my nfsiosnoop program -- Snoop on NFS I/O traffic including time, user, group, process name, pid, pathname, read bytes, write bytes, open, close, and file-descriptor data using only , sh, and

  9. 3. velj

    nfsiosnoop v3.0 -- New flags: -v (verbose, show filenames and all tracepoints) -u user (filter on name/uid) -g group (filter on group/gid) -t fmt (time format) -q (quiet; hide NULL reads/writes, open, close, dup)

  10. 3. velj
  11. 1. velj

    nfsiosnoop 1.2 for Fixed bug where live tracing NFS I/O fails to trace new file-descriptor activity following either observation of NULL pathname arg in tracepoint:syscalls:sys_open_enter or failure to store arg in map due to max keys

  12. 31. sij

    In the kernel VFS layer is comprised of functions that operate on “struct path *” which contains a “struct vfsmount *” which contains “struct super_block *” which contains “struct file_system_type *” which contains “char *name” which is “xfs”, “nfs”, etc

  13. 31. sij

    I have forked to my own repo at to improve the process of building on CentOS 7.7 (original repo used docker to build bpftrace and was not idempotent; my forked repo uses no docker and is idempotent)

  14. 30. sij

    ok some side questions that came up- does neovim or vim have tracing? some way to view what commands are being run? i'd also love to see the masters try to hack some kind of "command stream" out

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  15. 30. sij
  16. 11. stu 2019.

    How to: run BpfTrace from a small alpine image, and with least privileges - by Paulo Gomes

  17. 7. lis 2019.
  18. By , who wrote: "[…] is a new open source tracer for for analyzing production performance problems and troubleshooting software[…] You can use bpftrace via one-liners or scripts, and it ships with many prewritten tools […]"

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