Light Weight Kernel Threads (LWKT) is a computer science term and from DragonFlyBSD in particular. LWKTs differ from normal kernel threads in that they can preempt normal kernel threads. According to Matt Dillon, DragonFlyBSD creator:
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Lightweight is a weight class in the sports of boxing, kickboxing, mixed martial arts and rowing.
Boxing
Professional boxing
The lightweight division is over 130 pounds (59 kilograms) and up to 135 pounds (61 kilograms) weight class in the sport of boxing. Notable lightweight boxers include Alexis Argüello, Henry Armstrong, Ken Buchanan, Tony Canzoneri, Pedro Carrasco, Joel Casamayor, Al "Bummy" Davis, Oscar De La Hoya, Roberto Durán, Artur Grigorian, Joe Gans, Benny Leonard, Ray Mancini, Floyd Mayweather Jr., Juan Manuel Marquez, Sugar Shane Mosley, Miguel Ángel González, Carlos Ortiz, Edwin Valero, Pernell Whitaker, and Ike Williams.
Artur Grigorian holds the record for most consecutive title defenses at this division, with 17 defenses of the WBO title.
Professional Champions
Current Champions
Longest reigning lightweight champions
Below is a list of "longest reigning lightweight champions" career time as champion (for multiple time champions) does not apply.
Amateur boxing
Kickboxing
Bergsala Lightweight (バーグサラ・ライトウェイト), formerly LightWeight Co., Ltd, is a developer of video games. While LightWeight Co. developed innovative fighting games with samurai themes, such as the Bushido Blade series and the Kengo series, Bergsala Lightweight is currently known for its Hello Kitty games.
History
The company was founded on November 22, 1995 in Meguroku, Tokyo under managing director Tetsuo Mizuno. The developer Square Co., Ltd. initially had a 40% stake in Lightweight. Lightweight cut its ties with Square in 1998, and in March 1999, Takashi Ueda was appointed as CEO and director of the company. The following month, developer Genki acquired a 40% stake in the company. In March 2001 Lightweight became a wholly owned subsidiary of Genki, but dissolved this connection on March 31, 2006 when Lightweight was bought by Index Visual & Games, Ltd. Ueda retired in his position in November 2007.