Re: [PATCH 0/11] LTTng-core (basic tracing infrastructure) 0.5.108

Ar Iau, 2006-09-14 am 12:40 -0700, ysgrifennodd Tim Bird:
> It's only zero maintenance overhead for you.  Someone has to
> maintain it. The party line for years has been that in-tree
> maintenance is easier than out-of-tree maintenance.

That misses the entire point. If you have dynamic tracepoints you don't
have any static tracepoints to maintain because you don't need them.
They may be a clock or three slower but you are then going to branch
into the trace tool code paths, take tlb misses, take cache misses, and
eventually get back, so the cost of it being dynamic is so close to zero
in the biger picture it doesn't matter.

Alan

-
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/

---

• Follow-Ups:
  • Re: [PATCH 0/11] LTTng-core (basic tracing infrastructure) 0.5.108
    • From: Roman Zippel <[email protected]>

• References:
  • [PATCH 0/11] LTTng-core (basic tracing infrastructure) 0.5.108
    • From: Mathieu Desnoyers <[email protected]>
  • Re: [PATCH 0/11] LTTng-core (basic tracing infrastructure) 0.5.108
    • From: Ingo Molnar <[email protected]>
  • Re: [PATCH 0/11] LTTng-core (basic tracing infrastructure) 0.5.108
    • From: Roman Zippel <[email protected]>
  • Re: [PATCH 0/11] LTTng-core (basic tracing infrastructure) 0.5.108
    • From: Ingo Molnar <[email protected]>
  • Re: [PATCH 0/11] LTTng-core (basic tracing infrastructure) 0.5.108
    • From: Roman Zippel <[email protected]>
  • Re: [PATCH 0/11] LTTng-core (basic tracing infrastructure) 0.5.108
    • From: Roman Zippel <[email protected]>
  • Re: [PATCH 0/11] LTTng-core (basic tracing infrastructure) 0.5.108
    • From: Ingo Molnar <[email protected]>
  • Re: [PATCH 0/11] LTTng-core (basic tracing infrastructure) 0.5.108
    • From: Tim Bird <[email protected]>

• Prev by Date: Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory)
• Next by Date: Re: [01/12] driver core fixes: make_class_name() retval check
• Previous by thread: Re: [PATCH 0/11] LTTng-core (basic tracing infrastructure) 0.5.108
• Next by thread: Re: [PATCH 0/11] LTTng-core (basic tracing infrastructure) 0.5.108
• 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]