[LU-4238] Request for client parameter to limit caching of Lustre files to no larger than a certain size

• Type: New Feature
• Resolution: Low Priority
• Priority: Minor
• Assignee: WC Triage
• Reporter: Brett Lee (Inactive)

Description

Use case: Clients performing buffered IO in a mixed (small and large files) workload. Goal is to increase performance by keeping the small files in cache.

Justification: Ability to avoid caching of large files should keep small files in cache, thereby increasing performance.

Implementation: Thinking that a parameter, like the obdfilter.*.readcache_max_filesize parameter on an OSS, could be used.