[Webkit-unassigned] [Bug 226454] New: XMLHttpRequest Safari Networking Process Growing Memory Usage and Crash with Internal Error

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=226454

            Bug ID: 226454
           Summary: XMLHttpRequest Safari Networking Process Growing
                    Memory Usage and Crash with Internal Error
           Product: WebKit
           Version: Safari Technology Preview
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: JavaScriptCore
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: support at openspeedtest.com

I am debugging OpenSpeedTest an Ajax based network performance estimation tool. 

Which is maxing Multiple XHR requests to the server to benchmark user connection speed. 

I noticed HUGE memory Leake in Safari and i saw growing memory up to 100+Gb in Safari Networking Process after some time the repeated XHR requested retuned an error and stopped. 

I also noticed if we give 100Ms time before making new request Networking Process Growing Memory get resolved. 

Another most important issue i found is Performance difference in Normal Windows vs Private window without installing any Extensions the difference is huge.

In Private window the Networking Process Growing Memory issue is not there. 

I tested this on Intel Mac and M1 Mac. Latest Stable and technology preview Safari. 


Why Networking Process Growing Memory if we make a new request every-time?


Why Huge Performance difference in Private mode vs Normal windows?

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