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mdworker

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Spotlight plug-ins may cause high CPU usage by 'mdworker'

When the "mdworker" process uses a lot of CPU in OS X, one possible cause might be faults in Spotlight plug-ins.

By November 17, 2010

Article

Possible solution for Mac OS X Leopard 10.5.7 update issue 'mdworker'

Some users have noticed that after the Mac OS X Leopard 10.5.7 update the mdworker process was consuming a rather large portion of their processing power--in some cases over 130 percent. The mdworker issue was noted in our By May 22, 2009

Article

Address poor battery life in OS X Mavericks

While Mavericks has increased battery life for the most part, as with past versions of OS X, at times certain processes may bog down and cut expected lifetime significantly short.

By February 22, 2014

Article

MacFixIt readers report: Mac OS X 10.5.7 update issues (2)

In our second installment of readers report, MacFixIt followers find Bluetooth, X11, mdworker, and third party applications all having issues related to updating Mac OS X Leopard to 10.5.7. iPhoto Libraries are not appearing, sleep mode is not keeping an

By May 21, 2009

Article

About OS X system processes

Following our recent article discussing the launch sequence of OS X and how processes are organized, we have had requests about exactly what processes are running in OS X and wha

By July 24, 2009

Article

Mac OS X 10.5.x Special Report: Spotlight problems

Mac OS X 10.5.x Special Report: Spotlight problems

By November 29, 2007

Article

aslmanager taking up 99% of CPU

Mac OS X sometimes spawns background processes that consume an inordinate amount of CPU, resulting in a slow computer that may have the fans roaring and be very hot (especially for laptops). There are several known processes that can cause this problem, m

By January 23, 2009

Article

Two Spotlight stories

Sometimes Spotlight gets gummed up. Two readers found ways to ungum it.

By November 16, 2007

Article

Understanding process priority in OS X

As with many Unix and Linux systems, you can change the priority of processes in OS X to advance them through the CPU. While this will not make them faster, it can be used to make processes more responsive.

By March 29, 2011

Article

General troubleshooting steps for OS X

When troubleshooting Mac problems it helps to be able to isolate where the problem is occurring. Here are some steps to follow that can help you do this.

By September 22, 2011