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[JENKINS-16301] Fingerprint performance #13200

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[JENKINS-16301] Fingerprint performance#13200
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component:coreimported-jira-issueperformancepriority:minorresolution:fixed

Description

@jenkins-infra-bot
jenkins-infra-bot
opened on Jan 10, 2013

A user working with files in the 100+ Mb range asked whether fingerprinting them was expensive. Probably it is not that expensive but it is likely the implementation could be optimized and at least measured.

As far as the I/O goes, FilePath.digest uses FileInputStream rather than NIO—hmm, maybe OK. It does not use buffering, which may or may not be an issue here. Then it calls Util.getDigestOf.

That uses the JRE’s MD5 implementation which AFAIK takes advantage of any cryptographic hardware acceleration when available. It does read into a 1024-byte buffer however which seems excessively small. (And uses a proxy stream rather than simply calling the update method, which is odd.) http://stackoverflow.com/questions/9321912/very-slow-when-generaing-md5-using-java-with-large-file suggests using a custom library though this may be overkill; others suggest DigestUtils from Commons Codec. A

Originally reported by jglick, imported from: Fingerprint performance
  • assignee: jglick
  • status: Resolved
  • priority: Minor
  • component(s): core
  • label(s): 1.509.3-fixed, fingerprints, performance
  • resolution: Fixed
  • resolved: 2013-05-28T20:28:56+00:00
  • votes: 1
  • watchers: 3
  • imported: 2025-11-24
Raw content of original issue 
A user working with files in the 100+ Mb range asked whether fingerprinting them was expensive. Probably it is not that expensive but it is likely the implementation could be optimized and at least measured.



As far as the I/O goes, FilePath.digest uses FileInputStream rather than NIO—hmm, maybe OK. It does not use buffering, which may or may not be an issue here. Then it calls Util.getDigestOf.



That uses the JRE’s MD5 implementation which AFAIK takes advantage of any cryptographic hardware acceleration when available. It does read into a 1024-byte buffer however which seems excessively small. (And uses a proxy stream rather than simply calling the update method, which is odd.) http://stackoverflow.com/questions/9321912/very-slow-when-generaing-md5-using-java-with-large-file suggests using a custom library though this may be overkill; others suggest DigestUtils from Commons Codec. A

Activity

  1. jenkins-infra-bot commented on Apr 17, 2013

    @jenkins-infra-bot
    jenkins-infra-bot
    on Apr 17, 2013
    Author
    jglick:
    • Original comment link
    • Raw content of original comment: 
      Fingerprint storage seems to spend most of its time in XStream overhead.

    Fingerprint storage seems to spend most of its time in XStream overhead.

  2. jenkins-infra-bot commented on May 21, 2013

    @jenkins-infra-bot
    jenkins-infra-bot
    on May 21, 2013
    Author
    jglick:
    • Original comment link
    • Raw content of original comment: 
      Baseline average time (in 1.517-SNAPSHOT) of Util.getDigestOf(new FileInputStream("…/jenkins-war-1.509.1.war")): 220msec.
      


      Using a BufferedInputStream with default buffer size: 193msec.
      


      Using direct buffer update rather than DigestInputStream saves nothing, nor does using MappedByteBuffer on FileChannel, nor does using DigestUtils, nor does using a larger temporary buffer.
      


      Fast MD5 Implementation in Java takes 183msec, which is barely faster, but it requires JNI and is LGPL.
      


      So I think I will switch to DigestUtils just to reduce custom code, and add buffering.

    Baseline average time (in 1.517-SNAPSHOT) of Util.getDigestOf(new FileInputStream("…/jenkins-war-1.509.1.war")): 220msec.

    Using a BufferedInputStream with default buffer size: 193msec.

    Using direct buffer update rather than DigestInputStream saves nothing, nor does using MappedByteBuffer on FileChannel, nor does using DigestUtils, nor does using a larger temporary buffer.

    Fast MD5 Implementation in Java takes 183msec, which is barely faster, but it requires JNI and is LGPL.

    So I think I will switch to DigestUtils just to reduce custom code, and add buffering.

  3. jenkins-infra-bot commented on May 22, 2013

    @jenkins-infra-bot
    jenkins-infra-bot
    on May 22, 2013
    Author
    jglick:
    • Original comment link
    • Raw content of original comment: 
      Since the main problem from reports I have seen is Fingerprint.save calling complex code in XStream, with other threads waiting for the monitor, I am looking into whether a hand-coded “fast path” can perform better.

    Since the main problem from reports I have seen is Fingerprint.save calling complex code in XStream, with other threads waiting for the monitor, I am looking into whether a hand-coded “fast path” can perform better.

  4. jenkins-infra-bot commented on May 22, 2013

    @jenkins-infra-bot
    jenkins-infra-bot
    on May 22, 2013
    Author
    scm_issue_link:

    Code changed in jenkins
    User: Jesse Glick
    Path:
    core/src/main/java/hudson/Util.java
    http://jenkins-ci.org/commit/jenkins/51fbd2d8675fb3703ce38d935e661abf03e1b83b
    Log:
    JENKINS-16301 Replace impl of getDigestOf with standard (Commons Codec) DigestUtils.md5Hex, for simplicity.

  5. jenkins-infra-bot commented on May 22, 2013

    @jenkins-infra-bot
    jenkins-infra-bot
    on May 22, 2013
    Author
    scm_issue_link:

    Code changed in jenkins
    User: Jesse Glick
    Path:
    core/src/main/java/hudson/FilePath.java
    http://jenkins-ci.org/commit/jenkins/9d72311ba0222b9d0489605b8ec2cec711690993
    Log:
    JENKINS-16301 Use a buffered input stream to get somewhat better performance.

  6. jenkins-infra-bot commented on May 22, 2013

    @jenkins-infra-bot
    jenkins-infra-bot
    on May 22, 2013
    Author
    scm_issue_link:

    Code changed in jenkins
    User: Jesse Glick
    Path:
    core/src/main/java/hudson/model/Fingerprint.java
    core/src/main/java/hudson/util/PersistedList.java
    core/src/test/java/hudson/model/FingerprintTest.java
    core/src/test/resources/hudson/model/fingerprint.xml
    http://jenkins-ci.org/commit/jenkins/8d2e4523368716c82dc7333b4357d21d0dc93526
    Log:
    JENKINS-16301 Verifying current serial format as a baseline.

  7. jenkins-infra-bot commented on May 22, 2013

    @jenkins-infra-bot
    jenkins-infra-bot
    on May 22, 2013
    Author
    dogfood:
    • Original comment link
    • Raw content of original comment: 
      Integrated in  jenkins_main_trunk #2533
     JENKINS-16301 Replace impl of getDigestOf with standard (Commons Codec) DigestUtils.md5Hex, for simplicity. (Revision 51fbd2d8675fb3703ce38d935e661abf03e1b83b)
JENKINS-16301 Use a buffered input stream to get somewhat better performance. (Revision 9d72311ba0222b9d0489605b8ec2cec711690993)
JENKINS-16301 Verifying current serial format as a baseline. (Revision 8d2e4523368716c82dc7333b4357d21d0dc93526)
      


           Result = SUCCESS
Jesse Glick : 51fbd2d8675fb3703ce38d935e661abf03e1b83b
Files : 
      

        
	
      • core/src/main/java/hudson/Util.java
        • 

      



      Jesse Glick : 9d72311ba0222b9d0489605b8ec2cec711690993
Files : 
      

        
	
      • core/src/main/java/hudson/FilePath.java
        • 

      



      Jesse Glick : 8d2e4523368716c82dc7333b4357d21d0dc93526
Files : 
      

        
	
      • core/src/test/resources/hudson/model/fingerprint.xml
        • 
	
      • core/src/test/java/hudson/model/FingerprintTest.java
        • 
	
      • core/src/main/java/hudson/model/Fingerprint.java
        • 
	
      • core/src/main/java/hudson/util/PersistedList.java
        •

    Integrated in jenkins_main_trunk #2533
    JENKINS-16301 Replace impl of getDigestOf with standard (Commons Codec) DigestUtils.md5Hex, for simplicity. (Revision 51fbd2d)
    JENKINS-16301 Use a buffered input stream to get somewhat better performance. (Revision 9d72311)
    JENKINS-16301 Verifying current serial format as a baseline. (Revision 8d2e452)

    Result = SUCCESS
    Jesse Glick : 51fbd2d8675fb3703ce38d935e661abf03e1b83b
    Files :

    • core/src/main/java/hudson/Util.java

    Jesse Glick : 9d72311ba0222b9d0489605b8ec2cec711690993
    Files :

    • core/src/main/java/hudson/FilePath.java

    Jesse Glick : 8d2e4523368716c82dc7333b4357d21d0dc93526
    Files :

    • core/src/test/resources/hudson/model/fingerprint.xml
    • core/src/test/java/hudson/model/FingerprintTest.java
    • core/src/main/java/hudson/model/Fingerprint.java
    • core/src/main/java/hudson/util/PersistedList.java

  8. jenkins-infra-bot commented on May 22, 2013

    @jenkins-infra-bot
    jenkins-infra-bot
    on May 22, 2013
    Author
    jglick:
    • Original comment link
    • Raw content of original comment: 
      As a baseline,
      


      

      package hudson.model;
import hudson.Util;
import java.io.File;
public class Fingerprints {
    private static byte[] toByteArray(String md5sum) {
        byte[] data = new byte[16];
        for( int i=0; i<md5sum.length(); i+=2 )
            data[i/2] = (byte)Integer.parseInt(md5sum.substring(i,i+2),16);
        return data;
    }
    private static final byte[] SOME_MD5 = toByteArray(Util.getDigestOf("whatever"));
    public static void main(String[] args) throws Exception {
        Fingerprint f = new Fingerprint(new Fingerprint.BuildPtr("foo", 13), "stuff.jar", SOME_MD5);
        f.addWithoutSaving("some", 1);
        f.addWithoutSaving("some", 2);
        f.addWithoutSaving("some", 3);
        f.addWithoutSaving("some", 10);
        f.addWithoutSaving("other", 6);
        for (int i = 0; i < 100; i++) {
            for (int b = 0; b < 100; b += 2) {
                f.addWithoutSaving("job" + i, b);
            }
        }
        File x = new File("/tmp/fp.xml");
        int count = 10000;
        long start = System.currentTimeMillis();
        for (int i = 0; i < count; i++) {
            f.save(x);
        }
        long end = System.currentTimeMillis();
        System.out.println((1f * (end - start) / count) + "msec to save");
        start = System.currentTimeMillis();
        for (int i = 0; i < count; i++) {
            Fingerprint.load(x);
        }
        end = System.currentTimeMillis();
        System.out.println((1f * (end - start) / count) + "msec to load");
    }
}

      

      

      reports:
      

      

      1.8081msec to save
1.6956msec to load

    As a baseline,

    package hudson.model;
import hudson.Util;
import java.io.File;
public class Fingerprints {
    private static byte[] toByteArray(String md5sum) {
byte[] data = new byte[16];
for( int i=0; ibyte)Integer.parseInt(md5sum.substring(i,i+2),16);
return data;
    }
    private static final byte[] SOME_MD5 = toByteArray(Util.getDigestOf("whatever"));
    public static void main(String[] args) throws Exception {
Fingerprint f = new Fingerprint(new Fingerprint.BuildPtr("foo", 13), "stuff.jar", SOME_MD5);
f.addWithoutSaving("some", 1);
f.addWithoutSaving("some", 2);
f.addWithoutSaving("some", 3);
f.addWithoutSaving("some", 10);
f.addWithoutSaving("other", 6);
for (int i = 0; i < 100; i++) {
    for (int b = 0; b < 100; b += 2) {
f.addWithoutSaving("job" + i, b);
    }
}
File x = new File("/tmp/fp.xml");
int count = 10000;
long start = System.currentTimeMillis();
for (int i = 0; i < count; i++) {
    f.save(x);
}
long end = System.currentTimeMillis();
System.out.println((1f * (end - start) / count) + "msec to save");
start = System.currentTimeMillis();
for (int i = 0; i < count; i++) {
    Fingerprint.load(x);
}
end = System.currentTimeMillis();
System.out.println((1f * (end - start) / count) + "msec to load");
    }
}

    reports:

    1.8081msec to save
1.6956msec to load

  9. jenkins-infra-bot commented on May 22, 2013

    @jenkins-infra-bot
    jenkins-infra-bot
    on May 22, 2013
    Author
    scm_issue_link:

    Code changed in jenkins
    User: Jesse Glick
    Path:
    core/src/main/java/hudson/model/Fingerprint.java
    core/src/test/java/hudson/model/FingerprintTest.java
    http://jenkins-ci.org/commit/jenkins/41edc5867ba194fdb06b2e2ffa6b6addfaa99986
    Log:
    JENKINS-16301 Verifying current load/save implementation can round-trip fingerprints.

  10. jenkins-infra-bot commented on May 22, 2013

    @jenkins-infra-bot
    jenkins-infra-bot
    on May 22, 2013
    Author
    dogfood:

    Integrated in jenkins_main_trunk #2538
    JENKINS-16301 Verifying current load/save implementation can round-trip fingerprints. (Revision 41edc58)

    Result = SUCCESS
    Jesse Glick : 41edc5867ba194fdb06b2e2ffa6b6addfaa99986
    Files :

    • core/src/test/java/hudson/model/FingerprintTest.java
    • core/src/main/java/hudson/model/Fingerprint.java

  11. jenkins-infra-bot commented on May 28, 2013

    @jenkins-infra-bot
    jenkins-infra-bot
    on May 28, 2013
    Author
    jglick:
    • Original comment link
    • Raw content of original comment: 
      New baseline times are a bit shorter: 0.942msec to save. Using a hand-written serializer, I can get that down to 0.7601msec, a 19% savings. Not exactly dramatic but this is based on a single thread doing serial operations; the hand-written version does not contend locks.
      


      So to check that, changed the test program to run under concurrency stress (each thread saving its own Fingerprint over and over), and also using a tmpfs so that actual I/O time can be ignored:
      


      

      package hudson.model;
import hudson.Util;
import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.atomic.AtomicInteger;
import java.util.concurrent.atomic.AtomicLong;
public class Fingerprints {
    private static byte[] toByteArray(String md5sum) {
        byte[] data = new byte[16];
        for( int i=0; i<md5sum.length(); i+=2 )
            data[i/2] = (byte)Integer.parseInt(md5sum.substring(i,i+2),16);
        return data;
    }
    private static final byte[] SOME_MD5 = toByteArray(Util.getDigestOf("whatever"));
    public static void main(String[] args) throws InterruptedException {
        for (int concurrency = 1; concurrency <= 10; concurrency++) {
            List<Thread> threads = new ArrayList<Thread>();
            final AtomicLong totalTime = new AtomicLong();
            final AtomicInteger totalCount = new AtomicInteger();
            for (int i = 0; i < concurrency; i++) {
                final File x = new File("/run/user/" + System.getenv("USER") + "/fp" + i + ".xml");
                Thread t = new Thread("saver-" + i) {
                    @Override public void run() {
                        Fingerprint f = new Fingerprint(new Fingerprint.BuildPtr("foo", 13), "stuff.jar", SOME_MD5);
                        f.addWithoutSaving("some", 1);
                        f.addWithoutSaving("some", 2);
                        f.addWithoutSaving("some", 3);
                        f.addWithoutSaving("some", 10);
                        f.addWithoutSaving("other", 6);
                        for (int i = 0; i < 100; i++) {
                            for (int b = 0; b < 100; b += 2) {
                                f.addWithoutSaving("job" + i, b);
                            }
                        }
                        int count = 10000;
                        long start = System.currentTimeMillis();
                        for (int i = 0; i < count; i++) {
                            try {
                                f.save(x);
                            } catch (IOException e) {
                                assert false : e;
                            }
                        }
                        long end = System.currentTimeMillis();
                        totalTime.addAndGet(end - start);
                        totalCount.addAndGet(count);
                    }
                };
                t.start();
                threads.add(t);
            }
            for (Thread t : threads) {
                t.join();
            }
            System.out.println(concurrency + "×: " + (totalTime.floatValue() / totalCount.floatValue()) + "msec to save");
        }
    }
}

      

      

      Baseline times (on a quad-core):
      

      

      1×: 0.7479msec to save
2×: 0.6742msec to save
3×: 0.8395333msec to save
4×: 1.042125msec to save
5×: 1.2944msec to save
6×: 1.5228167msec to save
7×: 1.7666msec to save
8×: 2.0307374msec to save
9×: 2.297811msec to save
10×: 2.55688msec to save

      

      

      With patch:
      

      

      1×: 0.2807msec to save
2×: 0.234msec to save
3×: 0.26313335msec to save
4×: 0.329525msec to save
5×: 0.41194msec to save
6×: 0.49443334msec to save
7×: 0.56754285msec to save
8×: 0.650325msec to save
9×: 0.7313111msec to save
10×: 0.81052msec to save

      

      

      This shows a 2–3× speedup in CPU time, with the biggest gains under concurrent load. I am going to stop there for now; not bothering to optimize load which is I think called rather less often.

    New baseline times are a bit shorter: 0.942msec to save. Using a hand-written serializer, I can get that down to 0.7601msec, a 19% savings. Not exactly dramatic but this is based on a single thread doing serial operations; the hand-written version does not contend locks.

    So to check that, changed the test program to run under concurrency stress (each thread saving its own Fingerprint over and over), and also using a tmpfs so that actual I/O time can be ignored:

    package hudson.model;
import hudson.Util;
import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.atomic.AtomicInteger;
import java.util.concurrent.atomic.AtomicLong;
public class Fingerprints {
    private static byte[] toByteArray(String md5sum) {
byte[] data = new byte[16];
for( int i=0; ibyte)Integer.parseInt(md5sum.substring(i,i+2),16);
return data;
    }
    private static final byte[] SOME_MD5 = toByteArray(Util.getDigestOf("whatever"));
    public static void main(String[] args) throws InterruptedException {
for (int concurrency = 1; concurrency <= 10; concurrency++) {
    List<Thread> threads = new ArrayList<Thread>();
    final AtomicLong totalTime = new AtomicLong();
    final AtomicInteger totalCount = new AtomicInteger();
    for (int i = 0; i < concurrency; i++) {
final File x = new File("/run/user/" + System.getenv("USER") + "/fp" + i + ".xml");
Thread t = new Thread("saver-" + i) {
    @​Override public void run() {
Fingerprint f = new Fingerprint(new Fingerprint.BuildPtr("foo", 13), "stuff.jar", SOME_MD5);
f.addWithoutSaving("some", 1);
f.addWithoutSaving("some", 2);
f.addWithoutSaving("some", 3);
f.addWithoutSaving("some", 10);
f.addWithoutSaving("other", 6);
for (int i = 0; i < 100; i++) {
    for (int b = 0; b < 100; b += 2) {
f.addWithoutSaving("job" + i, b);
    }
}
int count = 10000;
long start = System.currentTimeMillis();
for (int i = 0; i < count; i++) {
    try {
f.save(x);
    } catch (IOException e) {
assert false : e;
    }
}
long end = System.currentTimeMillis();
totalTime.addAndGet(end - start);
totalCount.addAndGet(count);
    }
};
t.start();
threads.add(t);
    }
    for (Thread t : threads) {
t.join();
    }
    System.out.println(concurrency + "×: " + (totalTime.floatValue() / totalCount.floatValue()) + "msec to save");
}
    }
}

    Baseline times (on a quad-core):

    1×: 0.7479msec to save
2×: 0.6742msec to save
3×: 0.8395333msec to save
4×: 1.042125msec to save
5×: 1.2944msec to save
6×: 1.5228167msec to save
7×: 1.7666msec to save
8×: 2.0307374msec to save
9×: 2.297811msec to save
10×: 2.55688msec to save

    With patch:

    1×: 0.2807msec to save
2×: 0.234msec to save
3×: 0.26313335msec to save
4×: 0.329525msec to save
5×: 0.41194msec to save
6×: 0.49443334msec to save
7×: 0.56754285msec to save
8×: 0.650325msec to save
9×: 0.7313111msec to save
10×: 0.81052msec to save

    This shows a 2–3× speedup in CPU time, with the biggest gains under concurrent load. I am going to stop there for now; not bothering to optimize load which is I think called rather less often.

  12. jenkins-infra-bot commented on May 28, 2013

    @jenkins-infra-bot
    jenkins-infra-bot
    on May 28, 2013
    Author
    scm_issue_link:

    Code changed in jenkins
    User: Jesse Glick
    Path:
    changelog.html
    core/src/main/java/hudson/model/Fingerprint.java
    http://jenkins-ci.org/commit/jenkins/fff90c100d6b030f86d92cc4f0c23af3c648c75e
    Log:
    [FIXED JENKINS-16301] Optimized Fingerprint.save.

  13. jenkins-infra-bot
    closed this as completedon May 28, 2013

  14. jenkins-infra-bot commented on May 28, 2013

    @jenkins-infra-bot
    jenkins-infra-bot
    on May 28, 2013
    Author
    dogfood:

    Integrated in jenkins_main_trunk #2555
    [FIXED JENKINS-16301] Optimized Fingerprint.save. (Revision fff90c1)

    Result = UNSTABLE
    Jesse Glick : fff90c100d6b030f86d92cc4f0c23af3c648c75e
    Files :

    • changelog.html
    • core/src/main/java/hudson/model/Fingerprint.java

  15. jenkins-infra-bot commented on May 28, 2013

    @jenkins-infra-bot
    jenkins-infra-bot
    on May 28, 2013
    Author
    scm_issue_link:

    Code changed in jenkins
    User: Jesse Glick
    Path:
    core/src/main/java/hudson/model/Fingerprint.java
    core/src/test/java/hudson/model/FingerprintTest.java
    http://jenkins-ci.org/commit/jenkins/f1b513cf91663498aa1677580776a7c42c7322f2
    Log:
    JENKINS-16301 Need to create parent directory of fingerprint file too.

  16. 4 remaining items

  17. jenkins-infra-bot commented on Oct 4, 2013

    @jenkins-infra-bot
    jenkins-infra-bot
    on Oct 4, 2013
    Author
    scm_issue_link:
    • Original comment link
    • Raw content of original comment: 
      Code changed in jenkins
User: Jesse Glick
Path:
 src/main/java/hudson/maven/ExecutedMojo.java
 src/main/java/hudson/maven/reporters/MavenArtifact.java
 src/main/java/hudson/maven/reporters/MavenArtifactArchiver.java
http://jenkins-ci.org/commit/maven-plugin/db2b69174c511a1cba440ce3683de4cd6676734b
Log:
  [JENKINS-16301 Use a buffered input stream to get somewhat better performance also from Maven archiving.
Introducing Util.getDigestOf(File) as a convenience.
Originally-Committed-As: 11953750ab422bcec28d12a436867d0888313aaa

    Code changed in jenkins
    User: Jesse Glick
    Path:
    src/main/java/hudson/maven/ExecutedMojo.java
    src/main/java/hudson/maven/reporters/MavenArtifact.java
    src/main/java/hudson/maven/reporters/MavenArtifactArchiver.java
    http://jenkins-ci.org/commit/maven-plugin/db2b69174c511a1cba440ce3683de4cd6676734b
    Log:
    [JENKINS-16301 Use a buffered input stream to get somewhat better performance also from Maven archiving.
    Introducing Util.getDigestOf(File) as a convenience.
    Originally-Committed-As: 1195375

  18. jenkins-infra-bot commented on Oct 4, 2013

    @jenkins-infra-bot
    jenkins-infra-bot
    on Oct 4, 2013
    Author
    scm_issue_link:
    • Original comment link
    • Raw content of original comment: 
      Code changed in jenkins
User: Jesse Glick
Path:
 test/src/test/java/hudson/maven/MavenBuildTest.java
http://jenkins-ci.org/commit/maven-plugin/1342c5f819d6672ce53238822a93dddc087f0bd8
Log:
  Reverting an inessential part of the fix of JENKINS-16301 since it broke some Maven builds. Apparently the Maven 2 process factory fails to adequately insulate the Maven process from Jenkins library dependencies; if you specify a build extension that can override dependencies used by Jenkins core classes! A real fix would involve changing class loader delegation, since presumably similar bugs could still occur.

    Code changed in jenkins
    User: Jesse Glick
    Path:
    test/src/test/java/hudson/maven/MavenBuildTest.java
    http://jenkins-ci.org/commit/maven-plugin/1342c5f819d6672ce53238822a93dddc087f0bd8
    Log:
    Reverting an inessential part of the fix of JENKINS-16301 since it broke some Maven builds. Apparently the Maven 2 process factory fails to adequately insulate the Maven process from Jenkins library dependencies; if you specify a build extension that can override dependencies used by Jenkins core classes! A real fix would involve changing class loader delegation, since presumably similar bugs could still occur.

  19. jenkins-infra-bot
    added
    bugFor changelog: Minor bug. Will be listed after features
    performance
    imported-jira-issue
    component:core
    priority:minor
    resolution:fixed
    on Nov 24, 2025

  20. jenkins-infra-bot commented on Nov 24, 2025

    @jenkins-infra-bot
    jenkins-infra-bot
    on Nov 24, 2025
    Author

    [Original relates_to from Jira: JENKINS-13154]

  21. jenkins-infra-bot commented on Nov 24, 2025

    @jenkins-infra-bot
    jenkins-infra-bot
    on Nov 24, 2025
    Author

    [Original relates_to from Jira: JENKINS-11814]

  22. jenkins-infra-bot commented on Nov 24, 2025

    @jenkins-infra-bot
    jenkins-infra-bot
    on Nov 24, 2025
    Author

    [Original depends_on from Jira: JENKINS-18178]

  23. jenkins-infra-bot commented on Nov 24, 2025

    @jenkins-infra-bot
    jenkins-infra-bot
    on Nov 24, 2025
    Author

    [Original depends_on from Jira: JENKINS-19515]

  24. jenkins-infra-bot commented on Nov 24, 2025

    @jenkins-infra-bot
    jenkins-infra-bot
    on Nov 24, 2025
    Author

    [Original depends_on from Jira: JENKINS-18337]

  25. jenkins-infra-bot
    added the
    Bug
    issue type on Nov 25, 2025
  26. jenkins-infra-bot
    removed
    bugFor changelog: Minor bug. Will be listed after features
    on Nov 25, 2025
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