lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  PHC 
Open Source and information security mailing list archives
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date:	Fri, 18 Jan 2008 21:16:02 -0800
From:	Arjan van de Ven <>
To:	Andi Kleen <>
CC:	Linux Kernel Mailing List <>,
	Linus Torvalds <>,
	Ingo Molnar <>,
	Andrew Morton <>
Subject: Re: [Announce] Development release 0.1 of the LatencyTOP tool

Andi Kleen wrote:
> Arjan van de Ven <> writes:
>> The Intel Open Source Technology Center is pleased to announce the
>> release of version 0.1 of LatencyTOP, a tool for developers to visualize
>> system latencies.
> Just for completeness -- Linux already had a way to profile latencies
> since quite some time. It's little known unfortunately and doesn't
> work for modules since it's a special mode in the old non modular kernel
> profiler. 
> You enable CONFIG_SCHEDSTATS and boot with profile=sleep and then you can
> use the readprofile command to read the data. Information can be reset with 
> echo > /proc/profile
> There's also a profile=sched to profile the scheduler which works even

yes indeed; I sort of use the same infrastructure inside the scheduler; the biggest
reason I felt I had to do something different was that I wanted to do per process
data collection, so that you can see for a specific process what was going on.
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
More majordomo info at
Please read the FAQ at

Powered by blists - more mailing lists