[Bug 532490] Re: CONFIG_TASK_DELAY_ACCT not enabled in kernel

[Christian Kujau]

In the URL above it's mentioned that it would cause a performance hit
and has therefore been disabled in the config. However, delay accounting
can be disabled by passing nodelayacct as a boot parameter (see
Documentation/accounting/delay-accounting.tx). I have not seen actual
numbers confirming this performance hit - and I'd like to have
TASK_DELAY_ACCT, so that things like iotop (a helpful tool that actually
*helps* tracking I/O performance issues!) are useful again.

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CONFIG_TASK_DELAY_ACCT not enabled in kernel
https://bugs.launchpad.net/bugs/532490
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