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<body><span class="vcard"><a class="email" href="mailto:ggaren@apple.com" title="Geoffrey Garen <ggaren@apple.com>"> <span class="fn">Geoffrey Garen</span></a>
</span> changed
<a class="bz_bug_link
bz_status_NEW "
title="NEW - Background tabs should suspend or unload on macOS"
href="https://bugs.webkit.org/show_bug.cgi?id=162865">bug 162865</a>
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<th>What</th>
<th>Removed</th>
<th>Added</th>
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<td style="text-align:right;">Summary</td>
<td>Change behavior of tabs on macOS
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<td>Background tabs should suspend or unload on macOS
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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - Background tabs should suspend or unload on macOS"
href="https://bugs.webkit.org/show_bug.cgi?id=162865#c2">Comment # 2</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - Background tabs should suspend or unload on macOS"
href="https://bugs.webkit.org/show_bug.cgi?id=162865">bug 162865</a>
from <span class="vcard"><a class="email" href="mailto:ggaren@apple.com" title="Geoffrey Garen <ggaren@apple.com>"> <span class="fn">Geoffrey Garen</span></a>
</span></b>
<pre>Broadly speaking, WebKit already has this feature. It doesn't kill background tabs, but it does throttle background tab activity.
We've done some benchmarking that shows that throttled background tabs use minimal CPU and memory (since they page out to disk and stay there).
One way to move this conversation forward is to provide an example tab set that, when loaded in Safari Technology Preview, makes you have a bad time. We might find a simple bug in the existing throttling feature, or we might find a motivating example for some bigger design change.</pre>
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