llnl / llnl/UnifyFS

client: read request overflows

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Dominant language
C
Stars
122
Forks
34
PR merge metrics
No merged PRs in 30d

Description

When the number of read requests in lio_listio exceeds the threshhold (UNIFYCR_MAX_READ_CNT), or
the read requests in the shared read request buffer overflows, split the read requests into
multiple transfers (Todo in unifycr-sysio.c).

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start in unifycr-sysio.c at lio_listio and review how UNIFYCR_MAX_READ_CNT and the shared read request buffer are handled. Trace the existing transfer path before determining how overflowing read requests should be divided. Done means requests beyond the threshold or buffer capacity complete through multiple transfers without overflow.

Written by the indexing model from the issue text.

Assessment

Tech stack
c
Domain
operating-systems
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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