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sendfile_max(5)

Tunable Kernel Parameters
HP-UX 11i Version 2: December 2007 Update
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NAME

sendfile_max — maximum number of Buffer Cache Pages used by sendfile

VALUES

Failsafe

0 unlimited

Default

0 unlimited

Allowed values

0 unlimited

Or 1 to 262144

Recommended values

0 unlimited

DESCRIPTION

This variable is used to limit how many Buffer Cache Pages the sendfile() system call can use. This might be useful in a machine that has a large sendfile() load but is limited in memory.

Who Is Expected to Change This Tunable?

Anyone.

Restrictions on Changing

Changes to this tunable take effect at the next reboot.

When Should the Value of This Tunable Be Raised?

This tunable might be useful in a machine that has a large sendfile() load but is limited in memory.

What Are the Side Effects of Raising the Value?

Possible side effects would be slower sendfile() performance.

WARNINGS

All HP-UX kernel tunable parameters are release specific. This parameter may be removed or have its meaning changed in future releases of HP-UX.

Installation of optional kernel software, from HP or other vendors, may cause changes to tunable parameter values. After installation, some tunable parameters may no longer be at the default or recommended values. For information about the effects of installation on tunable values, consult the documentation for the kernel software being installed. For information about optional kernel software that was factory installed on your system, see HP-UX Release Notes at http://docs.hp.com.

AUTHOR

sendfile_max was developed by HP.