This shows up **a lot** on ChatGPT. Especially when you have a very long chat and send a message to ChatGPT (bug 1963578). Here are the most interesting stats (first column is counts) after opening a large chat and sending a message (most of the `get` calls happened while I was waiting for the reply): ``` 975 JS WeakMap constructor ... 14033 WeakMap get, miss, 1 entries 73299 WeakMap get, hit: 2 entries 6758088 WeakMap get, hit: 386 entries 19908292 WeakMap get, hit: 388 entries 26577476 WeakMap get, hit: 1 entries ``` They seem to use nested `WeakMap`s. I *think* the outer one has 386-388 entries in this case, but this number goes up with the length of the conversation. If ChatGPT's response is longer, the number of `WeakMap.prototype.get` calls becomes much much higher even. The next step is figuring out what they're doing exactly to trigger this.
Bug 1821107 Comment 14 Edit History
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This shows up **a lot** on ChatGPT. Especially when you have a very long chat and send a message to ChatGPT (bug 1963578). Here are the most interesting stats (first column is counts) after opening a large chat and sending a message (most of the `get` calls happened while I was waiting for the reply): ``` 975 JS WeakMap constructor ... 14033 WeakMap get, miss: 1 entries 73299 WeakMap get, hit: 2 entries 6758088 WeakMap get, hit: 386 entries 19908292 WeakMap get, hit: 388 entries 26577476 WeakMap get, hit: 1 entries ``` They seem to use nested `WeakMap`s. I *think* the outer one has 386-388 entries in this case, but this number goes up with the length of the conversation. If ChatGPT's response is longer, the number of `WeakMap.prototype.get` calls becomes much much higher even. The next step is figuring out what they're doing exactly to trigger this.