1918036 - IDB: Add a test for rapid addition and deletion of blobs

Status: RESOLVED FIXED

(Core :: Storage: IndexedDB, task, P3)

Description

[Jan Varga [:janv]]

Add a stress test which rapidly adds and deletes blobs in a row in separate transactions. Internally, blobs are only removed when all memory and database references drop to zero. At that point an asynchronous delete operation is scheduled which removes the backing file from disk. So the overall behavior and timing depends on cycle collection and garbage collection. The main goal of the new test is to make it more likely that internal structures are accessed by multiple threads at the same time, potentially discovering races or other issues. Note that the test needs to always create a new blob and a new transaction, otherwise new backing files wouldn't be created due to internal optimizations for de-duplication.

Comment 1

[Jan Varga [:janv]]

Attachment: Bug 1918036 - IDB: Add a test for rapid addition and deletion of blobs; r=#dom-storage

Comment 2

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/83b7fc93a125
IDB: Add a test for rapid addition and deletion of blobs; r=dom-storage-reviewers,asuth

Comment 3

[Sandor Molnar[:smolnar]]

https://hg.mozilla.org/mozilla-central/rev/83b7fc93a125