bum

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bum

(1)
To make highly efficient, either in time or space, often at the expense of clarity. "I managed to bum three more instructions out of that code." "I spent half the night bumming the interrupt code." In elder days, John McCarthy (inventor of Lisp) used to compare some efficiency-obsessed hackers among his students to "ski bums"; thus, optimisation became "program bumming", and eventually just "bumming".

bum

(2)
To squeeze out excess; to remove something in order to improve whatever it was removed from (without changing function; this distinguishes the process from a featurectomy).

bum

(3)
A small change to an algorithm, program, or hardware device to make it more efficient. "This hardware bum makes the jump instruction faster."

Usage: now uncommon, largely superseded by v. tune (and tweak, hack), though none of these exactly capture sense

bum

(4)
All these uses are rare in Commonwealth hackish, because in the parent dialects of English "bum" is a rude synonym for "buttocks".
This article is provided by FOLDOC - Free Online Dictionary of Computing (foldoc.org)
References in periodicals archive ?
That one failed but this one didn't and in late 2003 the developers were given the bum's rush and told by the city planners to build around it.
We could have done with one of those smirking political reporters - a Nick Robinson or an Andrew Marr - to translate the Premiership club's official announcement (for "amicable parting of the ways" read "given the bum's rush").
I'd been given the bum's rush when I ordered a pernod and creme de menthe.
And, of the several hundred thousand Manitobans who read newspapers, listen to radio and watch television in Manitoba two, count 'em: two people showed up with opinions about media, and both were given the bum's rush. I have the honour of being one of them.
Here's a lad who dreamed of serving the community, but who has been given the bum's rush because of something that might happen 25 years down the line.
THIS is the moment DUP leader and Free Presbyterian Church boss Ian Paisley was given the bum's rush....by a pro-Agreement fisherman.
We Christians haven't taken part in such worship since Jesus' first followers were given the bum's rush from the Jerusalem temple shortly after his death and resurrection.
ROGER FEDERER admitted being given the bum's rush by Jack Sock before his latest London victory at the Nitto ATP Finals.
Whenever the idea was brought before the City Council during more rosy fiscal times, it was pretty much given the bum's rush.
THONGS have been given the bum's rush as women go back to what granny knew was best - big pants.
The irony is that Keane and Ferguson - two men who have always taken belligerent pride in shaming the devil with their unvarnished version of the truth - curtailed their extraordinarily successful partnership with one of those mealy-mouthed 'mutual decision' smokescreens usually employed to reduce embarrassment all round when a shifty politician or crooked executive is given the bum's rush.