Created attachment 8724048 [details] about.memory User Agent: Mozilla/5.0 (Windows NT 6.2; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/47.0.2526.106 Safari/537.36 Steps to reproduce: 1) open this WebMap - http://www.arcgis.com/home/webmap/viewer.html?webmap=1f61f0c4ddcf4b7d8b7586d6cd85574d 2) zoom (use mousewheel) in and out around 10-30 times. Actual results: Memory goes up to 600MB-1GB+. And stays there for a while, then drops 100-200 MB, stays there for a minute, and so on. When WebMap is viewed from PC with 4 GB RAM, is usually ends with a crash. All plugins are disabled (FF in safe mode). Observed on: W8 64bit, FF 44 W8 64bit, FF 46 DEV W7 32bit, FF 44 When I open about:memory, this line catches attention: 539.84 MB ── imagelib-surface-cache-estimated-total I have found out that setting this config parameter helps - image.mem.surfacecache.min_expiration_ms to 1000. Expected results: I don't think memory consumption should be so high. On Chrome and IE it is about 200-300 MB and stays there, not matter how much I pan, scroll and try to break this.
OS: Unspecified → Windows
Hardware: Unspecified → x86_64
Priority: -- → P3
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