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  1. JDK
  2. JDK-8079223

unnecessary performance degradation caused by fix to JDK-8052111

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      Description

        The problem is caused by the security fix for : https://bugs.openjdk.java.net/browse/JDK-8079072
        In that fix we stopped reading in from the cached index file the following fields:
        validationTimeStamp,
        knownToBeSigned,
        blacklistValidationTime,
        certExpirationDate,
        classVerificationStatus,
        hasOnlySignedEntries,
        hasSingleCodeSource,
        hasMissingSignedEntries, and
        trustedLibrariesValidationTime,

        and these are re-computed on every run. Now it was originally thought that this performance degradation was caused by the time needed to recompute these values, but that proved to be negligible.
        The problem is that after they are re-computed, there are places which will re-write the index file with the changed values.
        the one place in CacheEntry.readIndexFile():
        > if (hasSigningInfo() &&
        > ((section4Pre15Length == 0 && enhancedJarAccess) ||
        > BlackList.getInstance().hasBeenModifiedSince(blacklistValidationTime) ||
        > TrustedLibraries.hasBeenModifiedSince(trustedLibrariesValidationTime)) &&
        > (!Cache.isSystemCacheEntry(this) || Environment.isSystemCacheMode())) {
        >
        > raf.close();
        > raf = null;
        > saveUpgrade();
        was comparing against blacklistValidationTime and trustedLibrariesValidationTime (which are no longer reasons to write the index, since these values in the cache are ignored).
        just changing that to:
        > if (hasSigningInfo() &&
        > ((section4Pre15Length == 0 && enhancedJarAccess) &&
        > (!Cache.isSystemCacheEntry(this) || Environment.isSystemCacheMode())) {
        >
        > raf.close();
        > raf = null;
        > saveUpgrade();

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            backported by

            Backport - A issue that is required to port a Bug or Feature into another product release. This issue type is generally associated with the main Bug/Feature to represent each individual release of the port. JDK-8079292 unnecessary performance degradation caused by fix to JDK-8052111

            • P2 - Crashes, loss of data, severe memory leak.
            • Resolved

            Backport - A issue that is required to port a Bug or Feature into another product release. This issue type is generally associated with the main Bug/Feature to represent each individual release of the port. JDK-8079406 unnecessary performance degradation caused by fix to JDK-8052111

            • P2 - Crashes, loss of data, severe memory leak.
            • Resolved

            Backport - A issue that is required to port a Bug or Feature into another product release. This issue type is generally associated with the main Bug/Feature to represent each individual release of the port. JDK-8079475 unnecessary performance degradation caused by fix to JDK-8052111

            • P2 - Crashes, loss of data, severe memory leak.
            • Resolved

            Backport - A issue that is required to port a Bug or Feature into another product release. This issue type is generally associated with the main Bug/Feature to represent each individual release of the port. JDK-8079931 unnecessary performance degradation caused by fix to JDK-8052111

            • P2 - Crashes, loss of data, severe memory leak.
            • Resolved

            Backport - A issue that is required to port a Bug or Feature into another product release. This issue type is generally associated with the main Bug/Feature to represent each individual release of the port. JDK-8082210 unnecessary performance degradation caused by fix to JDK-8052111

            • P2 - Crashes, loss of data, severe memory leak.
            • Resolved

            Backport - A issue that is required to port a Bug or Feature into another product release. This issue type is generally associated with the main Bug/Feature to represent each individual release of the port. JDK-8086292 unnecessary performance degradation caused by fix to JDK-8052111

            • P2 - Crashes, loss of data, severe memory leak.
            • Resolved

            Backport - A issue that is required to port a Bug or Feature into another product release. This issue type is generally associated with the main Bug/Feature to represent each individual release of the port. JDK-8131522 unnecessary performance degradation caused by fix to JDK-8052111

            • P2 - Crashes, loss of data, severe memory leak.
            • Resolved

            Backport - A issue that is required to port a Bug or Feature into another product release. This issue type is generally associated with the main Bug/Feature to represent each individual release of the port. JDK-8137386 unnecessary performance degradation caused by fix to JDK-8052111

            • P2 - Crashes, loss of data, severe memory leak.
            • Resolved

            Backport - A issue that is required to port a Bug or Feature into another product release. This issue type is generally associated with the main Bug/Feature to represent each individual release of the port. JDK-8140139 unnecessary performance degradation caused by fix to JDK-8052111

            • P2 - Crashes, loss of data, severe memory leak.
            • Resolved

            Backport - A issue that is required to port a Bug or Feature into another product release. This issue type is generally associated with the main Bug/Feature to represent each individual release of the port. JDK-8079367 unnecessary performance degradation caused by fix to JDK-8052111

            • P2 - Crashes, loss of data, severe memory leak.
            • Closed

            Backport - A issue that is required to port a Bug or Feature into another product release. This issue type is generally associated with the main Bug/Feature to represent each individual release of the port. JDK-8079368 unnecessary performance degradation caused by fix to JDK-8052111

            • P2 - Crashes, loss of data, severe memory leak.
            • Closed

            Backport - A issue that is required to port a Bug or Feature into another product release. This issue type is generally associated with the main Bug/Feature to represent each individual release of the port. JDK-8080073 unnecessary performance degradation caused by fix to JDK-8052111

            • P2 - Crashes, loss of data, severe memory leak.
            • Closed

            Backport - A issue that is required to port a Bug or Feature into another product release. This issue type is generally associated with the main Bug/Feature to represent each individual release of the port. JDK-8080516 unnecessary performance degradation caused by fix to JDK-8052111

            • P2 - Crashes, loss of data, severe memory leak.
            • Closed

            Backport - A issue that is required to port a Bug or Feature into another product release. This issue type is generally associated with the main Bug/Feature to represent each individual release of the port. JDK-8080857 unnecessary performance degradation caused by fix to JDK-8052111

            • P2 - Crashes, loss of data, severe memory leak.
            • Closed

            Backport - A issue that is required to port a Bug or Feature into another product release. This issue type is generally associated with the main Bug/Feature to represent each individual release of the port. JDK-8085840 unnecessary performance degradation caused by fix to JDK-8052111

            • P2 - Crashes, loss of data, severe memory leak.
            • Closed
            duplicates

            Bug - A problem which impairs or prevents the functions of the product. JDK-8136455 launching app via webstart extremely slow (should be fixed by JDK-8079223)

            • P3 - Major loss of function.
            • Closed

            Bug - A problem which impairs or prevents the functions of the product. JDK-8075574 launching app via webstart extremely slow

            • P4 - Minor loss of function, or other problem where easy workaround is present.
            • Resolved

            Bug - A problem which impairs or prevents the functions of the product. JDK-8076555 java webstart application viewer extremely slow

            • P4 - Minor loss of function, or other problem where easy workaround is present.
            • Resolved

            Bug - A problem which impairs or prevents the functions of the product. JDK-8080646 Severe performance issue w/ Web Start application startup/runtime since 8u40

            • P3 - Major loss of function.
            • Closed
            relates to

            Sub-task - The sub-task of the issue JDK-8057164 Remove dead code

            • P3 - Major loss of function.
            • Resolved

            Bug - A problem which impairs or prevents the functions of the product. JDK-8133095 Signed jar files trust is always expired and always validated ->Slow app startup

            • P3 - Major loss of function.
            • Closed

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                herrick Andy Herrick (Inactive)
                herrick Andy Herrick (Inactive)
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                  Created:
                  Updated:
                  Resolved: