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Oracle® JRockit Virtual Edition User's Guide Release 2.0.0 Part Number E22518-01 |
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# D.6 Suboptimal Disk I/O Performance in Certain Cases

Oracle JRockit Virtual Edition, like all operating systems, maintains an in-memory disk cache to improve disk I/O performance. Under certain conditions, this in-memory cache has to be flushed to guarantee a consistent disk state. The current release of Oracle JRockit Virtual Edition flushes the in-memory disk cache in some cases where it is not strictly necessary to do so. This can result in suboptimal performance in some cases — for example, deletion of a large number of files.