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  1. JDK
  2. JDK-6515172

Runtime.availableProcessors() ignores Linux taskset command

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    • b107
    • x86
    • linux, solaris_8

    Backports

      Description

        FULL PRODUCT VERSION :
        java version "1.6.0"
        Java(TM) SE Runtime Environment (build 1.6.0-b105)
        Java HotSpot(TM) 64-Bit Server VM (build 1.6.0-b105, mixed mode)

        ADDITIONAL OS VERSION INFORMATION :
        #1 SMP Tue Aug 29 10:40:40 UTC 2006 x86_64 x86_64 x86_64 GNU/Linux

        A DESCRIPTION OF THE PROBLEM :
        When limiting the available CPUs by Linux 'taskset' command, JVM obeys this limitation but Runtime.availableProcessors() always returns the number of CPUs where the hardware has.


        REPRODUCIBILITY :
        This bug can be reproduced always.

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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-8166105 Runtime.availableProcessors() ignores Linux taskset command

            • P3 - Major loss of function.
            • 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-8174019 Runtime.availableProcessors() ignores Linux taskset command

            • P3 - Major loss of function.
            • 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-8174180 Runtime.availableProcessors() ignores Linux taskset command

            • P3 - Major loss of function.
            • 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-8175145 Runtime.availableProcessors() ignores Linux taskset command

            • P3 - Major loss of function.
            • 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-8177172 Runtime.availableProcessors() ignores Linux taskset command

            • P3 - Major loss of function.
            • 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-8178565 Runtime.availableProcessors() ignores Linux taskset command

            • P3 - Major loss of function.
            • 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-8183634 Runtime.availableProcessors() ignores Linux taskset command

            • P3 - Major loss of function.
            • 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-8184494 Runtime.availableProcessors() ignores Linux taskset command

            • P3 - Major loss of function.
            • 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-8185179 Runtime.availableProcessors() ignores Linux taskset command

            • P3 - Major loss of function.
            • 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-8190021 Runtime.availableProcessors() ignores Linux taskset command

            • P3 - Major loss of function.
            • 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-8192167 Runtime.availableProcessors() ignores Linux taskset command

            • P3 - Major loss of function.
            • 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-8195255 Runtime.availableProcessors() ignores Linux taskset command

            • P3 - Major loss of function.
            • 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-8197250 Runtime.availableProcessors() ignores Linux taskset command

            • P3 - Major loss of function.
            • 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-8173345 Runtime.availableProcessors() ignores Linux taskset command

            • P3 - Major loss of function.
            • 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-8175906 Runtime.availableProcessors() ignores Linux taskset command

            • P3 - Major loss of function.
            • Closed
            duplicates

            Enhancement - null JDK-7003380 active_processor_count() unaware of cpusets

            • P5 - Cosmetic problem like misspelt words or misaligned text.
            • Closed

            Bug - A problem which impairs or prevents the functions of the product. JDK-8140793 getAvailableProcessors may incorrectly report the number of cpus in Docker container

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

            Bug - A problem which impairs or prevents the functions of the product. JDK-8147905 Verify all uses of os::processor_count()

            • P3 - Major loss of function.
            • Resolved

            Bug - A problem which impairs or prevents the functions of the product. JDK-8148987 [Linux] Allow building on older systems without CPU_ALLOC support

            • P3 - Major loss of function.
            • Resolved

            Bug - A problem which impairs or prevents the functions of the product. JDK-8161993 G1 crashes if active_processor_count changes during startup

            • 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-6673124 Runtime.availableProcessors / os::active_processor_count wrong if unused processor sets exist

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

            Bug - A problem which impairs or prevents the functions of the product. JDK-7010724 Red Hat Enterprise Linux box hangs (becomes inaccessible) when ParallelGCThreads in Sun JVM are high

            • P3 - Major loss of function.
            • Closed

            Enhancement - null JDK-6988568 RFE: Java SE to be resource pool aware

            • P3 - Major loss of function.
            • Closed

            Bug - A problem which impairs or prevents the functions of the product. JDK-8165153 Crash in rebuild_cpu_to_node_map

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

            Bug - A problem which impairs or prevents the functions of the product. JDK-8188310 Runtime.getRuntime().availableProcessors() returns wrong value

            • P3 - Major loss of function.
            • Closed

            Enhancement - null JDK-5048379 API for obtaining low-level CPU information (e.g., socket count and CPU model)

            • P3 - Major loss of function.
            • Open

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                dholmes David Holmes
                ndcosta Nelson Dcosta (Inactive)
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