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src/java.base/share/classes/sun/launcher/LauncherHelper.java

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 136      *
 137      * optionFlag: specifies which options to print default is all other
 138      *    possible values are vm, properties, locale.
 139      *
 140      * initialHeapSize: in bytes, as set by the launcher, a zero-value indicates
 141      *    this code should determine this value, using a suitable method or
 142      *    the line could be omitted.
 143      *
 144      * maxHeapSize: in bytes, as set by the launcher, a zero-value indicates
 145      *    this code should determine this value, using a suitable method.
 146      *
 147      * stackSize: in bytes, as set by the launcher, a zero-value indicates
 148      *    this code determine this value, using a suitable method or omit the
 149      *    line entirely.
 150      */
 151     @SuppressWarnings("fallthrough")
 152     static void showSettings(boolean printToStderr, String optionFlag,
 153             long initialHeapSize, long maxHeapSize, long stackSize) {
 154 
 155         initOutput(printToStderr);
 156         String opts[] = optionFlag.split(":");
 157         String optStr = (opts.length > 1 && opts[1] != null)
 158                 ? opts[1].trim()
 159                 : "all";
 160         switch (optStr) {
 161             case "vm":
 162                 printVmSettings(initialHeapSize, maxHeapSize, stackSize);
 163                 break;
 164             case "properties":
 165                 printProperties();
 166                 break;
 167             case "locale":
 168                 printLocale();
 169                 break;
 170             case "system":
 171                 if (System.getProperty("os.name").contains("Linux")) {
 172                     printSystemMetrics();
 173                     break;
 174                 }
 175             default:
 176                 printVmSettings(initialHeapSize, maxHeapSize, stackSize);


 314     }
 315 
 316     public static void printSystemMetrics() {
 317         Metrics c = Container.metrics();
 318 
 319         ostream.println("Operating System Metrics:");
 320 
 321         if (c == null) {
 322             ostream.println(INDENT + "No metrics available for this platform");
 323             return;
 324         }
 325 
 326         ostream.println(INDENT + "Provider: " + c.getProvider());
 327         ostream.println(INDENT + "Effective CPU Count: " + c.getEffectiveCpuCount());
 328         ostream.println(INDENT + "CPU Period: " + c.getCpuPeriod() +
 329                (c.getCpuPeriod() == -1 ? "" : "us"));
 330         ostream.println(INDENT + "CPU Quota: " + c.getCpuQuota() +
 331                (c.getCpuQuota() == -1 ? "" : "us"));
 332         ostream.println(INDENT + "CPU Shares: " + c.getCpuShares());
 333 
 334         int cpus[] = c.getCpuSetCpus();
 335         ostream.println(INDENT + "List of Processors, "
 336                 + cpus.length + " total: ");
 337 
 338         ostream.print(INDENT);
 339         for (int i = 0; i < cpus.length; i++) {
 340             ostream.print(cpus[i] + " ");
 341         }
 342         if (cpus.length > 0) {
 343             ostream.println("");
 344         }
 345 
 346         cpus = c.getEffectiveCpuSetCpus();
 347         ostream.println(INDENT + "List of Effective Processors, "
 348                 + cpus.length + " total: ");
 349 
 350         ostream.print(INDENT);
 351         for (int i = 0; i < cpus.length; i++) {
 352             ostream.print(cpus[i] + " ");
 353         }
 354         if (cpus.length > 0) {
 355             ostream.println("");
 356         }
 357 
 358         int mems[] = c.getCpuSetMems();
 359         ostream.println(INDENT + "List of Memory Nodes, "
 360                 + mems.length + " total: ");
 361 
 362         ostream.print(INDENT);
 363         for (int i = 0; i < mems.length; i++) {
 364             ostream.print(mems[i] + " ");
 365         }
 366         if (mems.length > 0) {
 367             ostream.println("");
 368         }
 369 
 370         mems = c.getEffectiveCpuSetMems();
 371         ostream.println(INDENT + "List of Available Memory Nodes, "
 372                 + mems.length + " total: ");
 373 
 374         ostream.print(INDENT);
 375         for (int i = 0; i < mems.length; i++) {
 376             ostream.print(mems[i] + " ");
 377         }
 378         if (mems.length > 0) {




 136      *
 137      * optionFlag: specifies which options to print default is all other
 138      *    possible values are vm, properties, locale.
 139      *
 140      * initialHeapSize: in bytes, as set by the launcher, a zero-value indicates
 141      *    this code should determine this value, using a suitable method or
 142      *    the line could be omitted.
 143      *
 144      * maxHeapSize: in bytes, as set by the launcher, a zero-value indicates
 145      *    this code should determine this value, using a suitable method.
 146      *
 147      * stackSize: in bytes, as set by the launcher, a zero-value indicates
 148      *    this code determine this value, using a suitable method or omit the
 149      *    line entirely.
 150      */
 151     @SuppressWarnings("fallthrough")
 152     static void showSettings(boolean printToStderr, String optionFlag,
 153             long initialHeapSize, long maxHeapSize, long stackSize) {
 154 
 155         initOutput(printToStderr);
 156         String[] opts = optionFlag.split(":");
 157         String optStr = (opts.length > 1 && opts[1] != null)
 158                 ? opts[1].trim()
 159                 : "all";
 160         switch (optStr) {
 161             case "vm":
 162                 printVmSettings(initialHeapSize, maxHeapSize, stackSize);
 163                 break;
 164             case "properties":
 165                 printProperties();
 166                 break;
 167             case "locale":
 168                 printLocale();
 169                 break;
 170             case "system":
 171                 if (System.getProperty("os.name").contains("Linux")) {
 172                     printSystemMetrics();
 173                     break;
 174                 }
 175             default:
 176                 printVmSettings(initialHeapSize, maxHeapSize, stackSize);


 314     }
 315 
 316     public static void printSystemMetrics() {
 317         Metrics c = Container.metrics();
 318 
 319         ostream.println("Operating System Metrics:");
 320 
 321         if (c == null) {
 322             ostream.println(INDENT + "No metrics available for this platform");
 323             return;
 324         }
 325 
 326         ostream.println(INDENT + "Provider: " + c.getProvider());
 327         ostream.println(INDENT + "Effective CPU Count: " + c.getEffectiveCpuCount());
 328         ostream.println(INDENT + "CPU Period: " + c.getCpuPeriod() +
 329                (c.getCpuPeriod() == -1 ? "" : "us"));
 330         ostream.println(INDENT + "CPU Quota: " + c.getCpuQuota() +
 331                (c.getCpuQuota() == -1 ? "" : "us"));
 332         ostream.println(INDENT + "CPU Shares: " + c.getCpuShares());
 333 
 334         int[] cpus = c.getCpuSetCpus();
 335         ostream.println(INDENT + "List of Processors, "
 336                 + cpus.length + " total: ");
 337 
 338         ostream.print(INDENT);
 339         for (int i = 0; i < cpus.length; i++) {
 340             ostream.print(cpus[i] + " ");
 341         }
 342         if (cpus.length > 0) {
 343             ostream.println("");
 344         }
 345 
 346         cpus = c.getEffectiveCpuSetCpus();
 347         ostream.println(INDENT + "List of Effective Processors, "
 348                 + cpus.length + " total: ");
 349 
 350         ostream.print(INDENT);
 351         for (int i = 0; i < cpus.length; i++) {
 352             ostream.print(cpus[i] + " ");
 353         }
 354         if (cpus.length > 0) {
 355             ostream.println("");
 356         }
 357 
 358         int[] mems = c.getCpuSetMems();
 359         ostream.println(INDENT + "List of Memory Nodes, "
 360                 + mems.length + " total: ");
 361 
 362         ostream.print(INDENT);
 363         for (int i = 0; i < mems.length; i++) {
 364             ostream.print(mems[i] + " ");
 365         }
 366         if (mems.length > 0) {
 367             ostream.println("");
 368         }
 369 
 370         mems = c.getEffectiveCpuSetMems();
 371         ostream.println(INDENT + "List of Available Memory Nodes, "
 372                 + mems.length + " total: ");
 373 
 374         ostream.print(INDENT);
 375         for (int i = 0; i < mems.length; i++) {
 376             ostream.print(mems[i] + " ");
 377         }
 378         if (mems.length > 0) {


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