Category Archives: Analytics & Monitoring

lssave write IO on OS X

Seeing unexpected write IO in Activity Monitor, had a look with:

sudo iotop 2>/dev/null

And lssave is the culprit. Then you want the following:

sudo /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/LaunchServices.framework/Versions/A/Support/lsregister -kill -r -domain local -domain system -domain user

Or a more verbose:

sudo /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/LaunchServices.framework/Versions/A/Support/lsregister -kill -r -v -lint -domain local -domain system -domain user 2>&1 | grep -v 10811 | grep -E -B 1 -A 2 "Can't|Error"
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(May 2011) RUM + New Relic + Joyent + Souders = Yummy

How we provide real user monitoring: A quick technical review | New Relic blog

How we provide real user monitoring: A quick technical review

This week New Relic released a whack of new and cool stuff. One of the coolest of the new is Real User Monitoring (RUM). Based on the javasrcipt library created by Google’s Steve Souders, RUM shows you what performance issues your actual users are experiencing on your site, right now. Finally you can see beyond the app tier. After all, even when things are performing fine on the server, who knows what’s happening on the network and in the browser? New Relic.

via How we provide real user monitoring: A quick technical review | New Relic blog.