JaCoLine - Viewing Historical Command Line #6989
| Analysis Date | JDK | Operating System | CPU Architecture | Debug JVM? |
|---|---|---|---|---|
| 2023-02-22 | OpenJDK19 | Linux | x86 | N |
Results
Switches Identified
Switch Analysis
| Name | Type | Description | Default Value | Your Value |
|---|---|---|---|---|
| mx | <size> | set maximum Java heap size | 6G | |
| Analysis | OK | |||
| Name | Type | Description | Default Value | Your Value |
|---|---|---|---|---|
| ms | <size> | set initial Java heap size | 6G | |
| Analysis | OK | |||
| Name | Type | Description | Default Value | Your Value |
|---|---|---|---|---|
| MaxMetaspaceSize | size_t | Maximum size of Metaspaces (in bytes) | max_uintx | 512M |
| Analysis | OK | |||
| Name | Type | Description | Default Value | Your Value |
|---|---|---|---|---|
| AutoBoxCacheMax | int | Sets max value cached by the java.lang.Integer autobox cache | 128 in range(0, max_jint) | 20000 |
| Analysis | OK | |||
| Name | Type | Description | Default Value | Your Value |
|---|---|---|---|---|
| MaxGCPauseMillis | int | Adaptive size policy maximum GC pause time goal in millisecond, or (G1 Only) the maximum GC time per MMU time slice |
max_uintx - 1 in range(1, max_uintx - 1) | 50 |
| Analysis | OK | |||
| Name | Type | Description | Default Value | Your Value |
|---|---|---|---|---|
| ActiveProcessorCount | int | Specify the CPU count the VM should use and report as active | -1 | 1 |
| Analysis | OK | |||
| Name | Type | Description | Default Value | Your Value |
|---|---|---|---|---|
| UseZGC | boolean | Use the Z garbage collector | false | true |
| Analysis | OK | |||
| Name | Type | Description | Default Value | Your Value |
|---|---|---|---|---|
| DisableExplicitGC | boolean | Ignore calls to System.gc() | false | true |
| Analysis | OK | |||
| Name | Type | Description | Default Value | Your Value |
|---|---|---|---|---|
| OmitStackTraceInFastThrow | boolean | Omit backtraces for some 'hot' exceptions in optimized code | true | false |
| Analysis | OK | |||
| Name | Type | Description | Default Value | Your Value |
|---|---|---|---|---|
| log | <opts> | Configure or enable logging with the Java Virtual Machine (JVM) unified logging framework. Use -Xlog:help for details. |
gc*:file=/data/logs/gc.log:time,tid,tags | |
| Analysis | OK | |||
| Name | Type | Description | Default Value | Your Value |
|---|---|---|---|---|
| DoEscapeAnalysis | boolean | Perform escape analysis | true | true |
| Analysis | OK | |||
| Name | Type | Description | Default Value | Your Value |
|---|---|---|---|---|
| EliminateLocks | boolean | Coarsen locks when possible | true | true |
| Analysis | OK | |||
| Name | Type | Description | Default Value | Your Value |
|---|---|---|---|---|
| AlwaysPreTouch | boolean | Force all freshly committed pages to be pre-touched | false | true |
| Analysis | OK | |||
| Name | Type | Description | Default Value | Your Value |
|---|---|---|---|---|
| UnlockDiagnosticVMOptions | boolean | Enable normal processing of flags relating to field diagnostics | trueInDebug | true |
| Analysis | OK | |||
| Name | Type | Description | Default Value | Your Value |
|---|---|---|---|---|
| PrintCompilation | boolean | Print compilations | false | true |
| Analysis | OK | |||
| Name | Type | Description | Default Value | Your Value |
|---|---|---|---|---|
| PrintInlining | boolean | Print inlining optimizations | false | true |
| Analysis | OK | |||
| Name | Type | Description | Default Value | Your Value |
|---|---|---|---|---|
| PrintCodeCache | boolean | Print the code cache memory usage when exiting | false | true |
| Analysis | OK | |||
| Name | Type | Description | Default Value | Your Value |
|---|---|---|---|---|
| PrintCodeCacheOnCompilation | boolean | Print the code cache memory usage each time a method is compiled |
false | true |
| Analysis | OK | |||
| Name | Type | Description | Default Value | Your Value |
|---|---|---|---|---|
| LogCompilation | boolean | Log compilation activity in detail to LogFile | false | true |
| Analysis | OK | |||
| Name | Type | Description | Default Value | Your Value |
|---|---|---|---|---|
| LogFile | string | If LogVMOutput or LogCompilation is on, save VM output to this file [default: ./hotspot_pid%p.log] (%p replaced with pid) |
NULL | /data/logs/Jit.log |
| Analysis | OK | |||
| Name | Type | Description | Default Value | Your Value |
|---|---|---|---|---|
| UseCompressedOops | boolean | Use 32-bit object references in 64-bit VM. lp64_product means flag is always constant in 32 bit VM |
false | true |
| Analysis | OK | |||
| Name | Type | Description | Default Value | Your Value |
|---|---|---|---|---|
| XSoftMaxHeapSize | : | |||
| Analysis | Switch not found in any JDK. Did you mean 'SoftMaxHeapSize' ? | |||