3830 SIGQUEUE_MAX's limit of 32 is too low

          --- old/usr/src/man/man5/resource_controls.5
          +++ new/usr/src/man/man5/resource_controls.5
   1    1  '\" te
   2    2  .\" Copyright (c) 2007, Sun Microsystems, Inc. All Rights Reserved.
   3    3  .\" The contents of this file are subject to the terms of the Common Development and Distribution License (the "License").  You may not use this file except in compliance with the License.
   4    4  .\" You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE or http://www.opensolaris.org/os/licensing.  See the License for the specific language governing permissions and limitations under the License.
   5    5  .\" When distributing Covered Code, include this CDDL HEADER in each file and include the License file at usr/src/OPENSOLARIS.LICENSE.  If applicable, add the following below this CDDL HEADER, with the fields enclosed by brackets "[]" replaced with your own identifying information: Portions Copyright [yyyy] [name of copyright owner]
   6      -.TH RESOURCE_CONTROLS 5 "Jul 2, 2007"
        6 +.TH RESOURCE_CONTROLS 5 "Jul 2, 2013"
   7    7  .SH NAME
   8    8  resource_controls \- resource controls available through project database
   9    9  .SH DESCRIPTION
  10   10  .sp
  11   11  .LP
  12   12  The resource controls facility is configured through the project database. See
  13   13  \fBproject\fR(4). You can set and modify resource controls through the
  14   14  following utilities:
  15   15  .RS +4
  16   16  .TP

  17   17  .ie t \(bu
  18   18  .el o
  19   19  \fBprctl\fR(1)
  20   20  .RE
  21   21  .RS +4
  22   22  .TP
  23   23  .ie t \(bu
  24   24  .el o
  25   25  \fBprojadd\fR(1M)
  26   26  .RE
  27   27  .RS +4
  28   28  .TP
  29   29  .ie t \(bu
  30   30  .el o
  31   31  \fBprojmod\fR(1M)
  32   32  .RE
  33   33  .RS +4
  34   34  .TP
  35   35  .ie t \(bu
  36   36  .el o
  37   37  \fBrctladm\fR(1M)
  38   38  .RE
  39   39  .sp
  40   40  .LP
  41   41  In a program, you use \fBsetrctl\fR(2) to set resource control values.
  42   42  .sp
  43   43  .LP
  44   44  In addition to the preceding resource controls, there are resource pools,
  45   45  accessible through the \fBpooladm\fR(1M) and \fBpoolcfg\fR(1M) utilities. In a
  46   46  program, resource pools can be manipulated through the \fBlibpool\fR(3LIB)
  47   47  library.
  48   48  .sp
  49   49  .LP
  50   50  The following are the resource controls are available:
  51   51  .sp
  52   52  .ne 2
  53   53  .na
  54   54  \fB\fBprocess.max-address-space\fR\fR
  55   55  .ad
  56   56  .sp .6
  57   57  .RS 4n
  58   58  Maximum amount of address space, as summed over segment sizes, that is
  59   59  available to this process, expressed as a number of bytes.
  60   60  .RE
  61   61  
  62   62  .sp
  63   63  .ne 2
  64   64  .na
  65   65  \fB\fBprocess.max-core-size\fR\fR
  66   66  .ad
  67   67  .sp .6
  68   68  .RS 4n
  69   69  Maximum size of a core file created by this process, expressed as a number of
  70   70  bytes.
  71   71  .RE
  72   72  
  73   73  .sp
  74   74  .ne 2
  75   75  .na
  76   76  \fB\fBprocess.max-cpu-time\fR\fR
  77   77  .ad
  78   78  .sp .6
  79   79  .RS 4n
  80   80  Maximum CPU time that is available to this process, expressed as a number of
  81   81  seconds.
  82   82  .RE
  83   83  
  84   84  .sp
  85   85  .ne 2
  86   86  .na
  87   87  \fB\fBprocess.max-data-size\fR\fR
  88   88  .ad
  89   89  .sp .6
  90   90  .RS 4n
  91   91  Maximum heap memory available to this process, expressed as a number of bytes.
  92   92  .RE
  93   93  
  94   94  .sp
  95   95  .ne 2
  96   96  .na
  97   97  \fB\fBprocess.max-file-descriptor\fR\fR
  98   98  .ad
  99   99  .sp .6
 100  100  .RS 4n
 101  101  Maximum file descriptor index available to this process, expressed as an
 102  102  integer.
 103  103  .RE
 104  104  
 105  105  .sp
 106  106  .ne 2
 107  107  .na
 108  108  \fB\fBprocess.max-file-size\fR\fR
 109  109  .ad
 110  110  .sp .6
 111  111  .RS 4n
 112  112  Maximum file offset available for writing by this process, expressed as a
 113  113  number of bytes.
 114  114  .RE
 115  115  
 116  116  .sp
 117  117  .ne 2
 118  118  .na
 119  119  \fB\fBprocess.max-msg-messages\fR\fR
 120  120  .ad
 121  121  .sp .6
 122  122  .RS 4n
 123  123  Maximum number of messages on a message queue (value copied from the resource
 124  124  control at \fBmsgget()\fR time), expressed as an integer.
 125  125  .RE
 126  126  
 127  127  .sp
 128  128  .ne 2
 129  129  .na
 130  130  \fB\fBprocess.max-msg-qbytes\fR\fR
 131  131  .ad
 132  132  .sp .6
 133  133  .RS 4n
 134  134  Maximum number of bytes of messages on a message queue (value copied from the
 135  135  resource control at \fBmsgget()\fR time), expressed as a number of bytes.
 136  136  .RE
 137  137  
 138  138  .sp
 139  139  .ne 2
 140  140  .na
 141  141  \fB\fBprocess.max-port-events\fR\fR
 142  142  .ad
 143  143  .sp .6
 144  144  .RS 4n
 145  145  Maximum allowable number of events per event port, expressed as an integer.
 146  146  .RE
 147  147  
 148  148  .sp
 149  149  .ne 2
 150  150  .na
 151  151  \fB\fBprocess.max-sem-nsems\fR\fR
 152  152  .ad
 153  153  .sp .6
 154  154  .RS 4n
 155  155  Maximum number of semaphores allowed per semaphore set, expressed as an
 156  156  integer.
 157  157  .RE
 158  158  
 159  159  .sp
 160  160  .ne 2
 161  161  .na
 162  162  \fB\fBprocess.max-sem-ops\fR\fR
 163  163  .ad

 164  164  .sp .6
 165  165  .RS 4n
 166  166  Maximum number of semaphore operations allowed per \fBsemop\fR call (value
 167  167  copied from the resource control at \fBsemget()\fR time). Expressed as an
 168  168  integer, specifying the number of operations.
 169  169  .RE
 170  170  
 171  171  .sp
 172  172  .ne 2
 173  173  .na
      174 +\fB\fBprocess.max-sigqueue-size\fR\fR
      175 +.ad
      176 +.sp .6
      177 +.RS 4n
      178 +Maximum number of outstanding queued signals.
      179 +.RE
      180 +
      181 +.sp
      182 +.ne 2
      183 +.na
 174  184  \fB\fBprocess.max-stack-size\fR\fR
 175  185  .ad
 176  186  .sp .6
 177  187  .RS 4n
 178  188  Maximum stack memory segment available to this process, expressed as a number
 179  189  of bytes.
 180  190  .RE
 181  191  
 182  192  .sp
 183  193  .ne 2

 184  194  .na
 185  195  \fB\fBproject.cpu-caps\fR\fR
 186  196  .ad
 187  197  .sp .6
 188  198  .RS 4n
 189  199  Maximum amount of CPU resources that a project can use. The unit used is the
 190  200  percentage of a single CPU that can be used by all user threads in a project.
 191  201  Expressed as an integer. The cap does not apply to threads running in real-time
 192  202  scheduling class. This resource control does not support the \fBsyslog\fR
 193  203  action.
 194  204  .RE
 195  205  
 196  206  .sp
 197  207  .ne 2
 198  208  .na
 199  209  \fB\fBproject.cpu-shares\fR\fR
 200  210  .ad
 201  211  .sp .6
 202  212  .RS 4n
 203  213  Number of CPU shares granted to a project for use with the fair share scheduler
 204  214  (see \fBFSS\fR(7)). The unit used is the number of shares (an integer). This
 205  215  resource control does not support the \fBsyslog\fR action.
 206  216  .RE
 207  217  
 208  218  .sp
 209  219  .ne 2
 210  220  .na
 211  221  \fB\fBproject.max-contracts\fR\fR
 212  222  .ad
 213  223  .sp .6
 214  224  .RS 4n
 215  225  Maximum number of contracts allowed in a project, expressed as an integer.
 216  226  .RE
 217  227  
 218  228  .sp
 219  229  .ne 2
 220  230  .na
 221  231  \fB\fBproject.max-crypto-memory\fR\fR
 222  232  .ad
 223  233  .sp .6
 224  234  .RS 4n
 225  235  Maximum amount of kernel memory that can be used for crypto operations.
 226  236  Allocations in the kernel for buffers and session-related structures are
 227  237  charged against this resource control.
 228  238  .RE
 229  239  
 230  240  .sp
 231  241  .ne 2
 232  242  .na
 233  243  \fB\fBproject.max-locked-memory\fR\fR
 234  244  .ad
 235  245  .sp .6
 236  246  .RS 4n
 237  247  Total amount of physical memory locked by device drivers and user processes
 238  248  (including D/ISM), expressed as a number of bytes.
 239  249  .RE
 240  250  
 241  251  .sp
 242  252  .ne 2
 243  253  .na
 244  254  \fB\fBproject.max-lwps\fR\fR
 245  255  .ad
 246  256  .sp .6
 247  257  .RS 4n
 248  258  Maximum number of LWPs simultaneously available to a project, expressed as an
 249  259  integer.
 250  260  .RE
 251  261  
 252  262  .sp
 253  263  .ne 2
 254  264  .na
 255  265  \fB\fBproject.max-msg-ids\fR\fR
 256  266  .ad
 257  267  .sp .6
 258  268  .RS 4n
 259  269  Maximum number of message queue IDs allowed for a project, expressed as an
 260  270  integer.
 261  271  .RE
 262  272  
 263  273  .sp
 264  274  .ne 2
 265  275  .na
 266  276  \fB\fBproject.max-port-ids\fR\fR
 267  277  .ad
 268  278  .sp .6
 269  279  .RS 4n
 270  280  Maximum allowable number of event ports, expressed as an integer.
 271  281  .RE
 272  282  
 273  283  .sp
 274  284  .ne 2
 275  285  .na
 276  286  \fB\fBproject.max-sem-ids\fR\fR
 277  287  .ad
 278  288  .sp .6
 279  289  .RS 4n
 280  290  Maximum number of semaphore IDs allowed for a project, expressed as an integer.
 281  291  .RE
 282  292  
 283  293  .sp
 284  294  .ne 2
 285  295  .na
 286  296  \fB\fBproject.max-shm-ids\fR\fR
 287  297  .ad
 288  298  .sp .6
 289  299  .RS 4n
 290  300  Maximum number of shared memory IDs allowed for a project, expressed as an
 291  301  integer.
 292  302  .RE
 293  303  
 294  304  .sp
 295  305  .ne 2
 296  306  .na
 297  307  \fB\fBproject.max-shm-memory\fR\fR
 298  308  .ad
 299  309  .sp .6
 300  310  .RS 4n
 301  311  Total amount of shared memory allowed for a project, expressed as a number of
 302  312  bytes.
 303  313  .RE
 304  314  
 305  315  .sp
 306  316  .ne 2
 307  317  .na
 308  318  \fB\fBproject.max-tasks\fR\fR
 309  319  .ad
 310  320  .sp .6
 311  321  .RS 4n
 312  322  Maximum number of tasks allowable in a project, expressed as an integer.
 313  323  .RE
 314  324  
 315  325  .sp
 316  326  .ne 2
 317  327  .na
 318  328  \fB\fBproject.pool\fR\fR
 319  329  .ad
 320  330  .sp .6
 321  331  .RS 4n
 322  332  Binds a specified resource pool with a project.
 323  333  .RE
 324  334  
 325  335  .sp
 326  336  .ne 2
 327  337  .na
 328  338  \fB\fBrcap.max-rss\fR\fR
 329  339  .ad
 330  340  .sp .6
 331  341  .RS 4n
 332  342  The total amount of physical memory, in bytes, that is available to processes
 333  343  in a project.
 334  344  .RE
 335  345  
 336  346  .sp
 337  347  .ne 2
 338  348  .na
 339  349  \fB\fBtask.max-cpu-time\fR\fR
 340  350  .ad
 341  351  .sp .6
 342  352  .RS 4n
 343  353  Maximum CPU time that is available to this task's processes, expressed as a
 344  354  number of seconds.
 345  355  .RE
 346  356  
 347  357  .sp
 348  358  .ne 2
 349  359  .na
 350  360  \fB\fBtask.max-lwps\fR\fR
 351  361  .ad
 352  362  .sp .6
 353  363  .RS 4n
 354  364  Maximum number of LWPs simultaneously available to this task's processes,
 355  365  expressed as an integer.
 356  366  .RE
 357  367  
 358  368  .sp
 359  369  .LP
 360  370  The following zone-wide resource controls are available:
 361  371  .sp
 362  372  .ne 2
 363  373  .na
 364  374  \fB\fBzone.cpu-cap\fR\fR
 365  375  .ad
 366  376  .sp .6
 367  377  .RS 4n
 368  378  Sets a limit on the amount of CPU time that can be used by a zone. The unit
 369  379  used is the percentage of a single CPU that can be used by all user threads in
 370  380  a zone. Expressed as an integer. When projects within the capped zone have
 371  381  their own caps, the minimum value takes precedence. This resource control does
 372  382  not support the \fBsyslog\fR action.
 373  383  .RE
 374  384  
 375  385  .sp
 376  386  .ne 2
 377  387  .na
 378  388  \fB\fBzone.cpu-shares\fR\fR
 379  389  .ad
 380  390  .sp .6
 381  391  .RS 4n
 382  392  Sets a limit on the number of fair share scheduler (FSS) CPU shares for a zone.
 383  393  CPU shares are first allocated to the zone, and then further subdivided among
 384  394  projects within the zone as specified in the \fBproject.cpu-shares\fR entries.
 385  395  Expressed as an integer. This resource control does not support the
 386  396  \fBsyslog\fR action.
 387  397  .RE
 388  398  
 389  399  .sp
 390  400  .ne 2
 391  401  .na
 392  402  \fB\fBzone.max-locked-memory\fR\fR
 393  403  .ad
 394  404  .sp .6
 395  405  .RS 4n
 396  406  Total amount of physical locked memory available to a zone.
 397  407  .RE
 398  408  
 399  409  .sp
 400  410  .ne 2
 401  411  .na
 402  412  \fB\fBzone.max-lwps\fR\fR
 403  413  .ad
 404  414  .sp .6
 405  415  .RS 4n
 406  416  Enhances resource isolation by preventing too many LWPs in one zone from
 407  417  affecting other zones. A zone's total LWPs can be further subdivided among
 408  418  projects within the zone within the zone by using \fBproject.max-lwps\fR
 409  419  entries. Expressed as an integer.
 410  420  .RE
 411  421  
 412  422  .sp
 413  423  .ne 2
 414  424  .na
 415  425  \fB\fBzone.max-msg-ids\fR\fR
 416  426  .ad
 417  427  .sp .6
 418  428  .RS 4n
 419  429  Maximum number of message queue IDs allowed for a zone, expressed as an
 420  430  integer.
 421  431  .RE
 422  432  
 423  433  .sp
 424  434  .ne 2
 425  435  .na
 426  436  \fB\fBzone.max-sem-ids\fR\fR
 427  437  .ad
 428  438  .sp .6
 429  439  .RS 4n
 430  440  Maximum number of semaphore IDs allowed for a zone, expressed as an integer.
 431  441  .RE
 432  442  
 433  443  .sp
 434  444  .ne 2
 435  445  .na
 436  446  \fB\fBzone.max-shm-ids\fR\fR
 437  447  .ad
 438  448  .sp .6
 439  449  .RS 4n
 440  450  Maximum number of shared memory IDs allowed for a zone, expressed as an
 441  451  integer.
 442  452  .RE
 443  453  
 444  454  .sp
 445  455  .ne 2
 446  456  .na
 447  457  \fB\fBzone.max-shm-memory\fR\fR
 448  458  .ad
 449  459  .sp .6
 450  460  .RS 4n
 451  461  Total amount of shared memory allowed for a zone, expressed as a number of
 452  462  bytes.
 453  463  .RE
 454  464  
 455  465  .sp
 456  466  .ne 2
 457  467  .na
 458  468  \fB\fBzone.max-swap\fR\fR
 459  469  .ad
 460  470  .sp .6
 461  471  .RS 4n
 462  472  Total amount of swap that can be consumed by user process address space
 463  473  mappings and \fBtmpfs\fR mounts for this zone.
 464  474  .RE
 465  475  
 466  476  .sp
 467  477  .LP
 468  478  See \fBzones\fR(5).
 469  479  .SS "Units Used in Resource Controls"
 470  480  .sp
 471  481  .LP
 472  482  Resource controls can be expressed as in units of size (bytes), time (seconds),
 473  483  or as a count (integer). These units use the strings specified below.
 474  484  .sp
 475  485  .in +2
 476  486  .nf
 477  487  Category             Res Ctrl      Modifier  Scale
 478  488                       Type String
 479  489  -----------          -----------   --------  -----
 480  490  Size                 bytes         B         1
 481  491                                     KB        2^10
 482  492                                     MB        2^20
 483  493                                     GB        2^30
 484  494                                     TB        2^40
 485  495                                     PB        2^50
 486  496                                     EB        2^60
 487  497  
 488  498  Time                 seconds       s         1
 489  499                                     Ks        10^3
 490  500                                     Ms        10^6
 491  501                                     Gs        10^9
 492  502                                     Ts        10^12
 493  503                                     Ps        10^15
 494  504                                     Es        10^18
 495  505  
 496  506  Count                integer       none      1
 497  507                                     K         10^3
 498  508                                     M         10^6
 499  509                                     G         10^9
 500  510                                     T         10^12
 501  511                                     P         10^15
 502  512                                     Es        10^18
 503  513  .fi
 504  514  .in -2
 505  515  
 506  516  .sp
 507  517  .LP
 508  518  Scaled values can be used with resource controls. The following example shows a
 509  519  scaled threshold value:
 510  520  .sp
 511  521  .in +2
 512  522  .nf
 513  523  task.max-lwps=(priv,1K,deny)
 514  524  .fi
 515  525  .in -2
 516  526  
 517  527  .sp
 518  528  .LP
 519  529  In the \fBproject\fR file, the value \fB1K\fR is expanded to \fB1000\fR:
 520  530  .sp
 521  531  .in +2
 522  532  .nf
 523  533  task.max-lwps=(priv,1000,deny)
 524  534  .fi
 525  535  .in -2
 526  536  
 527  537  .sp
 528  538  .LP
 529  539  A second example uses a larger scaled value:
 530  540  .sp
 531  541  .in +2
 532  542  .nf
 533  543  process.max-file-size=(priv,5G,deny)
 534  544  .fi
 535  545  .in -2
 536  546  
 537  547  .sp
 538  548  .LP
 539  549  In the \fBproject\fR file, the value \fB5G\fR is expanded to \fB5368709120\fR:
 540  550  .sp
 541  551  .in +2
 542  552  .nf
 543  553  process.max-file-size=(priv,5368709120,deny)
 544  554  .fi
 545  555  .in -2
 546  556  
 547  557  .sp
 548  558  .LP
 549  559  The preceding examples use the scaling factors specified in the table above.
 550  560  .sp
 551  561  .LP
 552  562  Note that unit modifiers (for example, \fB5G\fR) are accepted by the
 553  563  \fBprctl\fR(1), \fBprojadd\fR(1M), and \fBprojmod\fR(1M) commands. You cannot
 554  564  use unit modifiers in the project database itself.
 555  565  .SS "Resource Control Values and Privilege Levels"
 556  566  .sp
 557  567  .LP
 558  568  A threshold value on a resource control constitutes a point at which local
 559  569  actions can be triggered or global actions, such as logging, can occur.
 560  570  .sp
 561  571  .LP
 562  572  Each threshold value on a resource control must be associated with a privilege
 563  573  level. The privilege level must be one of the following three types:
 564  574  .sp
 565  575  .ne 2
 566  576  .na
 567  577  \fB\fBbasic\fR\fR
 568  578  .ad
 569  579  .sp .6
 570  580  .RS 4n
 571  581  Can be modified by the owner of the calling process.
 572  582  .RE
 573  583  
 574  584  .sp
 575  585  .ne 2
 576  586  .na
 577  587  \fB\fBprivileged\fR\fR
 578  588  .ad
 579  589  .sp .6
 580  590  .RS 4n
 581  591  Can be modified by the current process (requiring \fBsys_resource\fR privilege)
 582  592  or by \fBprctl\fR(1) (requiring \fBproc_owner\fR privilege).
 583  593  .RE
 584  594  
 585  595  .sp
 586  596  .ne 2
 587  597  .na
 588  598  \fB\fBsystem\fR\fR
 589  599  .ad
 590  600  .sp .6
 591  601  .RS 4n
 592  602  Fixed for the duration of the operating system instance.
 593  603  .RE
 594  604  
 595  605  .sp
 596  606  .LP
 597  607  A resource control is guaranteed to have one \fBsystem\fR value, which is
 598  608  defined by the system, or resource provider. The \fBsystem\fR value represents
 599  609  how much of the resource the current implementation of the operating system is
 600  610  capable of providing.
 601  611  .sp
 602  612  .LP
 603  613  Any number of privileged values can be defined, and only one basic value is
 604  614  allowed. Operations that are performed without specifying a privilege value are
 605  615  assigned a basic privilege by default.
 606  616  .sp
 607  617  .LP
 608  618  The privilege level for a resource control value is defined in the privilege
 609  619  field of the resource control block as \fBRCTL_BASIC\fR, \fBRCTL_PRIVILEGED\fR,
 610  620  or \fBRCTL_SYSTEM\fR. See \fBsetrctl\fR(2) for more information. You can use
 611  621  the \fBprctl\fR command to modify values that are associated with basic and
 612  622  privileged levels.
 613  623  .sp
 614  624  .LP
 615  625  In specifying the privilege level of \fBprivileged\fR, you can use the
 616  626  abbreviation \fBpriv\fR. For example:
 617  627  .sp
 618  628  .in +2
 619  629  .nf
 620  630  task.max-lwps=(priv,1K,deny)
 621  631  .fi
 622  632  .in -2
 623  633  
 624  634  .SS "Global and Local Actions on Resource Control Values"
 625  635  .sp
 626  636  .LP
 627  637  There are two categories of actions on resource control values: global and
 628  638  local.
 629  639  .sp
 630  640  .LP
 631  641  Global actions apply to resource control values for every resource control on
 632  642  the system. You can use \fBrctladm\fR(1M) to perform the following actions:
 633  643  .RS +4
 634  644  .TP
 635  645  .ie t \(bu
 636  646  .el o
 637  647  Display the global state of active system resource controls.
 638  648  .RE
 639  649  .RS +4
 640  650  .TP
 641  651  .ie t \(bu
 642  652  .el o
 643  653  Set global logging actions.
 644  654  .RE
 645  655  .sp
 646  656  .LP
 647  657  You can disable or enable the global logging action on resource controls. You
 648  658  can set the \fBsyslog\fR action to a specific degree by assigning a severity
 649  659  level, \fBsyslog=\fR\fIlevel\fR. The possible settings for \fIlevel\fR are as
 650  660  follows:
 651  661  .RS +4
 652  662  .TP
 653  663  .ie t \(bu
 654  664  .el o
 655  665  \fBdebug\fR
 656  666  .RE
 657  667  .RS +4
 658  668  .TP
 659  669  .ie t \(bu
 660  670  .el o
 661  671  \fBinfo\fR
 662  672  .RE
 663  673  .RS +4
 664  674  .TP
 665  675  .ie t \(bu
 666  676  .el o
 667  677  \fBnotice\fR
 668  678  .RE
 669  679  .RS +4
 670  680  .TP
 671  681  .ie t \(bu
 672  682  .el o
 673  683  \fBwarning\fR
 674  684  .RE
 675  685  .RS +4
 676  686  .TP
 677  687  .ie t \(bu
 678  688  .el o
 679  689  \fBerr\fR
 680  690  .RE
 681  691  .RS +4
 682  692  .TP
 683  693  .ie t \(bu
 684  694  .el o
 685  695  \fBcrit\fR
 686  696  .RE
 687  697  .RS +4
 688  698  .TP
 689  699  .ie t \(bu
 690  700  .el o
 691  701  \fBalert\fR
 692  702  .RE
 693  703  .RS +4
 694  704  .TP
 695  705  .ie t \(bu
 696  706  .el o
 697  707  \fBemerg\fR
 698  708  .RE
 699  709  .sp
 700  710  .LP
 701  711  By default, there is no global logging of resource control violations.
 702  712  .sp
 703  713  .LP
 704  714  Local actions are taken on a process that attempts to exceed the control value.
 705  715  For each threshold value that is placed on a resource control, you can
 706  716  associate one or more actions. There are three types of local actions:
 707  717  \fBnone\fR, \fBdeny\fR, and \fBsignal=\fR. These three actions are used as
 708  718  follows:
 709  719  .sp
 710  720  .ne 2
 711  721  .na
 712  722  \fB\fBnone\fR\fR
 713  723  .ad
 714  724  .sp .6
 715  725  .RS 4n
 716  726  No action is taken on resource requests for an amount that is greater than the
 717  727  threshold. This action is useful for monitoring resource usage without
 718  728  affecting the progress of applications. You can also enable a global message
 719  729  that displays when the resource control is exceeded, while, at the same time,
 720  730  the process exceeding the threshhold is not affected.
 721  731  .RE
 722  732  
 723  733  .sp
 724  734  .ne 2
 725  735  .na
 726  736  \fB\fBdeny\fR\fR
 727  737  .ad
 728  738  .sp .6
 729  739  .RS 4n
 730  740  You can deny resource requests for an amount that is greater than the
 731  741  threshold. For example, a \fBtask.max-lwps\fR resource control with action deny
 732  742  causes a \fBfork()\fR system call to fail if the new process would exceed the
 733  743  control value. See the \fBfork\fR(2).
 734  744  .RE
 735  745  
 736  746  .sp
 737  747  .ne 2
 738  748  .na
 739  749  \fB\fBsignal=\fR\fR
 740  750  .ad
 741  751  .sp .6
 742  752  .RS 4n
 743  753  You can enable a global signal message action when the resource control is
 744  754  exceeded. A signal is sent to the process when the threshold value is exceeded.
 745  755  Additional signals are not sent if the process consumes additional resources.
 746  756  Available signals are listed below.
 747  757  .RE
 748  758  
 749  759  .sp
 750  760  .LP
 751  761  Not all of the actions can be applied to every resource control. For example, a
 752  762  process cannot exceed the number of CPU shares assigned to the project of which
 753  763  it is a member. Therefore, a deny action is not allowed on the
 754  764  \fBproject.cpu-shares\fR resource control.
 755  765  .sp
 756  766  .LP
 757  767  Due to implementation restrictions, the global properties of each control can
 758  768  restrict the range of available actions that can be set on the threshold value.
 759  769  (See \fBrctladm\fR(1M).) A list of available signal actions is presented in the
 760  770  following list. For additional information about signals, see
 761  771  \fBsignal\fR(3HEAD).
 762  772  .sp
 763  773  .LP
 764  774  The following are the signals available to resource control values:
 765  775  .sp
 766  776  .ne 2
 767  777  .na
 768  778  \fB\fBSIGABRT\fR\fR
 769  779  .ad
 770  780  .sp .6
 771  781  .RS 4n
 772  782  Terminate the process.
 773  783  .RE
 774  784  
 775  785  .sp
 776  786  .ne 2
 777  787  .na
 778  788  \fB\fBSIGHUP\fR\fR
 779  789  .ad
 780  790  .sp .6
 781  791  .RS 4n
 782  792  Send a hangup signal. Occurs when carrier drops on an open line. Signal sent to
 783  793  the process group that controls the terminal.
 784  794  .RE
 785  795  
 786  796  .sp
 787  797  .ne 2
 788  798  .na
 789  799  \fB\fBSIGTERM\fR\fR
 790  800  .ad
 791  801  .sp .6
 792  802  .RS 4n
 793  803  Terminate the process. Termination signal sent by software.
 794  804  .RE
 795  805  
 796  806  .sp
 797  807  .ne 2
 798  808  .na
 799  809  \fB\fBSIGKILL\fR\fR
 800  810  .ad
 801  811  .sp .6
 802  812  .RS 4n
 803  813  Terminate the process and kill the program.
 804  814  .RE
 805  815  
 806  816  .sp
 807  817  .ne 2
 808  818  .na
 809  819  \fB\fBSIGSTOP\fR\fR
 810  820  .ad
 811  821  .sp .6
 812  822  .RS 4n
 813  823  Stop the process. Job control signal.
 814  824  .RE
 815  825  
 816  826  .sp
 817  827  .ne 2
 818  828  .na
 819  829  \fB\fBSIGXRES\fR\fR
 820  830  .ad
 821  831  .sp .6
 822  832  .RS 4n
 823  833  Resource control limit exceeded. Generated by resource control facility.
 824  834  .RE
 825  835  
 826  836  .sp
 827  837  .ne 2
 828  838  .na
 829  839  \fB\fBSIGXFSZ\fR\fR
 830  840  .ad
 831  841  .sp .6
 832  842  .RS 4n
 833  843  Terminate the process. File size limit exceeded. Available only to resource
 834  844  controls with the \fBRCTL_GLOBAL_FILE_SIZE\fR property
 835  845  (\fBprocess.max-file-size\fR). See \fBrctlblk_set_value\fR(3C).
 836  846  .RE
 837  847  
 838  848  .sp
 839  849  .ne 2
 840  850  .na
 841  851  \fB\fBSIGXCPU\fR\fR
 842  852  .ad
 843  853  .sp .6
 844  854  .RS 4n
 845  855  Terminate the process. CPU time limit exceeded. Available only to resource
 846  856  controls with the \fBRCTL_GLOBAL_CPUTIME\fR property
 847  857  (\fBprocess.max-cpu-time\fR). See \fBrctlblk_set_value\fR(3C).
 848  858  .RE
 849  859  
 850  860  .SS "Resource Control Flags and Properties"
 851  861  .sp
 852  862  .LP
 853  863  Each resource control on the system has a certain set of associated properties.
 854  864  This set of properties is defined as a set of flags, which are associated with
 855  865  all controlled instances of that resource. Global flags cannot be modified, but
 856  866  the flags can be retrieved by using either \fBrctladm\fR(1M) or the
 857  867  \fBsetrctl\fR(2) system call.
 858  868  .sp
 859  869  .LP
 860  870  Local flags define the default behavior and configuration for a specific
 861  871  threshold value of that resource control on a specific process or process
 862  872  collective. The local flags for one threshold value do not affect the behavior
 863  873  of other defined threshold values for the same resource control. However, the
 864  874  global flags affect the behavior for every value associated with a particular
 865  875  control. Local flags can be modified, within the constraints supplied by their
 866  876  corresponding global flags, by the \fBprctl\fR command or the \fBsetrctl\fR
 867  877  system call. See \fBsetrctl\fR(2).
 868  878  .sp
 869  879  .LP
 870  880  For the complete list of local flags, global flags, and their definitions, see
 871  881  \fBrctlblk_set_value\fR(3C).
 872  882  .sp
 873  883  .LP
 874  884  To determine system behavior when a threshold value for a particular resource
 875  885  control is reached, use \fBrctladm\fR to display the global flags for the
 876  886  resource control . For example, to display the values for
 877  887  \fBprocess.max-cpu-time\fR, enter:
 878  888  .sp
 879  889  .in +2
 880  890  .nf
 881  891  $ rctladm process.max-cpu-time
 882  892  process.max-cpu-time  syslog=off [ lowerable no-deny cpu-time inf seconds ]
 883  893  .fi
 884  894  .in -2
 885  895  
 886  896  .sp
 887  897  .LP
 888  898  The global flags indicate the following:
 889  899  .sp
 890  900  .ne 2
 891  901  .na
 892  902  \fB\fBlowerable\fR\fR
 893  903  .ad
 894  904  .sp .6
 895  905  .RS 4n
 896  906  Superuser privileges are not required to lower the privileged values for this
 897  907  control.
 898  908  .RE
 899  909  
 900  910  .sp
 901  911  .ne 2
 902  912  .na
 903  913  \fB\fBno-deny\fR\fR
 904  914  .ad
 905  915  .sp .6
 906  916  .RS 4n
 907  917  Even when threshold values are exceeded, access to the resource is never
 908  918  denied.
 909  919  .RE
 910  920  
 911  921  .sp
 912  922  .ne 2
 913  923  .na
 914  924  \fB\fBcpu-time\fR\fR
 915  925  .ad
 916  926  .sp .6
 917  927  .RS 4n
 918  928  \fBSIGXCPU\fR is available to be sent when threshold values of this resource
 919  929  are reached.
 920  930  .RE
 921  931  
 922  932  .sp
 923  933  .ne 2
 924  934  .na
 925  935  \fB\fBseconds\fR\fR
 926  936  .ad
 927  937  .sp .6
 928  938  .RS 4n
 929  939  The time value for the resource control.
 930  940  .RE
 931  941  
 932  942  .sp
 933  943  .LP
 934  944  Use the \fBprctl\fR command to display local values and actions for the
 935  945  resource control. For example:
 936  946  .sp
 937  947  .in +2
 938  948  .nf
 939  949  $ prctl -n process.max-cpu-time $$
 940  950      process 353939: -ksh
 941  951      NAME    PRIVILEGE    VALUE    FLAG   ACTION              RECIPIENT
 942  952   process.max-cpu-time
 943  953           privileged   18.4Es    inf   signal=XCPU                 -
 944  954           system       18.4Es    inf   none
 945  955  .fi
 946  956  .in -2
 947  957  
 948  958  .sp
 949  959  .LP
 950  960  The \fBmax\fR (\fBRCTL_LOCAL_MAXIMAL\fR) flag is set for both threshold values,
 951  961  and the \fBinf\fR (\fBRCTL_GLOBAL_INFINITE\fR) flag is defined for this
 952  962  resource control. An \fBinf\fR value has an infinite quantity. The value is
 953  963  never enforced. Hence, as configured, both threshold quantities represent
 954  964  infinite values that are never exceeded.
 955  965  .SS "Resource Control Enforcement"
 956  966  .sp
 957  967  .LP
 958  968  More than one resource control can exist on a resource. A resource control can
 959  969  exist at each containment level in the process model. If resource controls are
 960  970  active on the same resource at different container levels, the smallest
 961  971  container's control is enforced first. Thus, action is taken on
 962  972  \fBprocess.max-cpu-time\fR before \fBtask.max-cpu-time\fR if both controls are
 963  973  encountered simultaneously.
 964  974  .SH ATTRIBUTES
 965  975  .sp
 966  976  .LP
 967  977  See \fBattributes\fR(5) for a description of the following attributes:
 968  978  .sp
 969  979  
 970  980  .sp
 971  981  .TS
 972  982  box;
 973  983  c | c
 974  984  l | l .
 975  985  ATTRIBUTE TYPE  ATTRIBUTE VALUE
 976  986  _
 977  987  Interface Stability     Evolving
 978  988  .TE
 979  989  
 980  990  .SH SEE ALSO
 981  991  .sp
 982  992  .LP
 983  993  \fBprctl\fR(1), \fBpooladm\fR(1M), \fBpoolcfg\fR(1M), \fBprojadd\fR(1M),
 984  994  \fBprojmod\fR(1M), \fBrctladm\fR(1M), \fBsetrctl\fR(2),
 985  995  \fBrctlblk_set_value\fR(3C), \fBlibpool\fR(3LIB), \fBproject\fR(4),
 986  996  \fBattributes\fR(5), \fBFSS\fR(7)
 987  997  .sp
 988  998  .LP
 989  999  \fISystem Administration Guide:  Virtualization Using the Solaris Operating
 990 1000  System\fR

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