microsoft / microsoft/VFSForGit
Mac: Support increasing the number entries in the vnode cache while the kext is running
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- Dominant language
- C#
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Description
Currently if the vnode cache runs out of room the cache is cleared and it starts getting filled up again.
With an initial size of 2 * desiredvnodes it's unlikely the cache will run out of room, however, it's possible that another kext could increase the value of desiredvnodes after the cache is initialized.
Rather than simply clearing the cache, we could allocate more memory at the same time.
Related comments in #715:
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by tracing the Mac kext's vnode cache initialization and the path taken when the cache runs out of room; review the related discussion in issue #715. Done means the cache can allocate more memory when desiredvnodes increases while the kext is running, instead of simply clearing and refilling it.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- macos
- Domain
- operating-systems
- Issue type
- Feature
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100