Re: [Patch][RFC] Disabling per-tgid stats on task exit in taskstats

Andrew wrote:
> Nah.  Stick it in the same cacheline as tasklist_lock (I'm amazed that
> we've continued to get away with a global lock for that).

Yes - a bit amazing.  But no sense compounding the problem now.

We shouldn't be adding global locks/modifiable data in the
fork/exit code path if we can help it, without at least
providing some simple way to ameliorate the problem when
folks do start hitting it.

-- 
                  I won't rest till it's the best ...
                  Programmer, Linux Scalability
                  Paul Jackson <[email protected]> 1.925.600.0401
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

---

• References:
  • [Patch][RFC] Disabling per-tgid stats on task exit in taskstats
    • From: Shailabh Nagar <[email protected]>
  • Re: [Patch][RFC] Disabling per-tgid stats on task exit in taskstats
    • From: Shailabh Nagar <[email protected]>
  • Re: [Patch][RFC] Disabling per-tgid stats on task exit in taskstats
    • From: Andrew Morton <[email protected]>
  • Re: [Patch][RFC] Disabling per-tgid stats on task exit in taskstats
    • From: Shailabh Nagar <[email protected]>
  • Re: [Patch][RFC] Disabling per-tgid stats on task exit in taskstats
    • From: Jay Lan <[email protected]>
  • Re: [Patch][RFC] Disabling per-tgid stats on task exit in taskstats
    • From: Andrew Morton <[email protected]>
  • Re: [Patch][RFC] Disabling per-tgid stats on task exit in taskstats
    • From: Shailabh Nagar <[email protected]>
  • Re: [Patch][RFC] Disabling per-tgid stats on task exit in taskstats
    • From: Andrew Morton <[email protected]>
  • Re: [Patch][RFC] Disabling per-tgid stats on task exit in taskstats
    • From: Jay Lan <[email protected]>
  • Re: [Patch][RFC] Disabling per-tgid stats on task exit in taskstats
    • From: Andrew Morton <[email protected]>
  • Re: [Patch][RFC] Disabling per-tgid stats on task exit in taskstats
    • From: Jay Lan <[email protected]>
  • Re: [Patch][RFC] Disabling per-tgid stats on task exit in taskstats
    • From: Andrew Morton <[email protected]>
  • Re: [Patch][RFC] Disabling per-tgid stats on task exit in taskstats
    • From: Jay Lan <[email protected]>
  • Re: [Patch][RFC] Disabling per-tgid stats on task exit in taskstats
    • From: Paul Jackson <[email protected]>
  • Re: [Patch][RFC] Disabling per-tgid stats on task exit in taskstats
    • From: [email protected]
  • Re: [Patch][RFC] Disabling per-tgid stats on task exit in taskstats
    • From: Paul Jackson <[email protected]>
  • Re: [Patch][RFC] Disabling per-tgid stats on task exit in taskstats
    • From: Andrew Morton <[email protected]>
  • Re: [Patch][RFC] Disabling per-tgid stats on task exit in taskstats
    • From: Shailabh Nagar <[email protected]>
  • Re: [Patch][RFC] Disabling per-tgid stats on task exit in taskstats
    • From: Andrew Morton <[email protected]>
  • Re: [Patch][RFC] Disabling per-tgid stats on task exit in taskstats
    • From: Shailabh Nagar <[email protected]>
  • Re: [Patch][RFC] Disabling per-tgid stats on task exit in taskstats
    • From: jamal <[email protected]>
  • Re: [Patch][RFC] Disabling per-tgid stats on task exit in taskstats
    • From: Shailabh Nagar <[email protected]>
  • Re: [Patch][RFC] Disabling per-tgid stats on task exit in taskstats
    • From: Andrew Morton <[email protected]>
  • Re: [Patch][RFC] Disabling per-tgid stats on task exit in taskstats
    • From: Paul Jackson <[email protected]>
  • Re: [Patch][RFC] Disabling per-tgid stats on task exit in taskstats
    • From: Andrew Morton <[email protected]>

• Prev by Date: Re: USB driver for Sierra Wireless EM5625/MC5720 1xEVDO modules
• Next by Date: Re: [Patch][RFC] Disabling per-tgid stats on task exit in taskstats
• Previous by thread: Re: [Patch][RFC] Disabling per-tgid stats on task exit in taskstats
• Next by thread: Re: [Patch][RFC] Disabling per-tgid stats on task exit in taskstats
• Index(es):
  • Date
  • Thread

[Index of Archives]     [Kernel Newbies]     [Netfilter]     [Bugtraq]     [Photo]     [Stuff]     [Gimp]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Video 4 Linux]     [Linux for the blind]     [Linux Resources]