On Tue, Jan 7, 2025, 8:09 AM Stefan Monnier <monn...@iro.umontreal.ca> wrote:
> Is there a tool somewhere that lets me monitor a single process? > > Something I'd run, passing it a PID and which would display a regularly > refreshed status of what the process is doing: MB/s read from the > filesystem, MB/s written to the filesystem, maybe even with more detail > (actual file name(s) accessed maybe summarized as directories if there > are too many), same thing for the network, amount of CPU being used, > ideally even some indication of "where" that CPU time is spent > The info you're looking for about files, filesystems and disk IO is available from the "lsof" command. You could invoke it taking results back as data with "-F" and cobble it together with the data sampled from other sources. I mostly work in the Red Hat world lately and developers where I work have your same need. They fill it with paid products like dynatrace oneagent. `strace` gives enough data to compute at least part of the above info, > so it seems doable, but I haven't seen any reference to such a tool pass > by my desk over the years. What am I missing? > > > Stefan > >
