1 /* -----------------------------------------------------------------------------
3 * (c) The GHC Team, 1998-1999
5 * Datatypes that holds the command-line flag settings.
7 * ---------------------------------------------------------------------------*/
14 /* For defaults, see the @initRtsFlagsDefaults@ routine. */
20 #define COLLECT_GC_STATS 1
21 #define ONELINE_GC_STATS 2
22 #define SUMMARY_GC_STATS 3
23 #define VERBOSE_GC_STATS 4
25 nat maxStkSize; /* in *words* */
26 nat initialStkSize; /* in *words* */
28 nat maxHeapSize; /* in *blocks* */
29 nat minAllocAreaSize; /* in *blocks* */
30 nat minOldGenSize; /* in *blocks* */
31 nat heapSizeSuggestion; /* in *blocks* */
37 rtsBool squeezeUpdFrames;
39 rtsBool compact; /* True <=> "compact all the time" */
40 double compactThreshold;
42 rtsBool sweep; /* use "mostly mark-sweep" instead of copying
43 * for the oldest generation */
47 int idleGCDelayTime; /* in milliseconds */
49 StgWord heapBase; /* address to ask the OS for memory */
53 /* flags to control debugging output & extra checking in various subsystems */
54 rtsBool scheduler; /* 's' */
55 rtsBool interpreter; /* 'i' */
56 rtsBool weak; /* 'w' */
57 rtsBool gccafs; /* 'G' */
59 rtsBool block_alloc; /* 'b' */
60 rtsBool sanity; /* 'S' warning: might be expensive! */
61 rtsBool stable; /* 't' */
62 rtsBool prof; /* 'p' */
63 rtsBool eventlog; /* 'e' */
64 rtsBool gran; /* 'r' */
65 rtsBool par; /* 'P' */
66 rtsBool linker; /* 'l' the object linker */
67 rtsBool apply; /* 'a' */
68 rtsBool stm; /* 'm' */
69 rtsBool squeeze; /* 'z' stack squeezing & lazy blackholing */
70 rtsBool hpc; /* 'c' coverage */
71 rtsBool timestamp; /* add timestamps to traces */
74 struct COST_CENTRE_FLAGS {
75 unsigned int doCostCentres;
76 # define COST_CENTRES_SUMMARY 1
77 # define COST_CENTRES_VERBOSE 2 /* incl. serial time profile */
78 # define COST_CENTRES_ALL 3
79 # define COST_CENTRES_XML 4
81 int profilerTicks; /* derived */
82 int msecsPerTick; /* derived */
85 struct PROFILING_FLAGS {
86 unsigned int doHeapProfile;
87 # define NO_HEAP_PROFILING 0 /* N.B. Used as indexes into arrays */
88 # define HEAP_BY_CCS 1
89 # define HEAP_BY_MOD 2
90 # define HEAP_BY_DESCR 4
91 # define HEAP_BY_TYPE 5
92 # define HEAP_BY_RETAINER 6
93 # define HEAP_BY_LDV 7
95 # define HEAP_BY_CLOSURE_TYPE 8
97 nat profileInterval; /* delta between samples (in ms) */
98 nat profileIntervalTicks; /* delta between samples (in 'ticks') */
102 rtsBool showCCSOnException;
104 nat maxRetainerSetSize;
113 char* retainerSelector;
119 struct EVENTLOG_FLAGS {
120 rtsBool doEventLogging;
124 struct CONCURRENT_FLAGS {
125 int ctxtSwitchTime; /* in milliseconds */
126 int ctxtSwitchTicks; /* derived */
130 int tickInterval; /* in milliseconds */
131 rtsBool install_signal_handlers;
132 rtsBool machineReadable;
133 StgWord linkerMemBase; /* address to ask the OS for memory
134 * for the linker, NULL ==> off */
138 /* currently the same as GRAN_STATS_FLAGS */
139 struct PAR_STATS_FLAGS {
140 rtsBool Full; /* Full .gr profile (rtsTrue) or only END events? */
141 rtsBool Suppressed; /* No .gr profile at all */
142 rtsBool Binary; /* Binary profile? (not yet implemented) */
143 rtsBool Sparks; /* Info on sparks in profile? */
144 rtsBool Heap; /* Info on heap allocs in profile? */
145 rtsBool NewLogfile; /* Use new log-file format? (not yet implemented) */
146 rtsBool Global; /* Global statistics? (printed on shutdown; no log file) */
149 struct PAR_DEBUG_FLAGS {
150 /* flags to control debugging output in various subsystems */
151 rtsBool verbose : 1; /* 1 */
152 rtsBool bq : 1; /* 2 */
153 rtsBool schedule : 1; /* 4 */
154 rtsBool free : 1; /* 8 */
155 rtsBool resume : 1; /* 16 */
156 rtsBool weight : 1; /* 32 */
157 rtsBool fetch : 1; /* 64 */
158 rtsBool fish : 1; /* 128 */
159 rtsBool tables : 1; /* 256 */
160 rtsBool packet : 1; /* 512 */
161 rtsBool pack : 1; /* 1024 */
162 rtsBool paranoia : 1; /* 2048 */
165 #define MAX_PAR_DEBUG_OPTION 11
166 #define PAR_DEBUG_MASK(n) ((nat)(ldexp(1,n)))
167 #define MAX_PAR_DEBUG_MASK ((nat)(ldexp(1,(MAX_PAR_DEBUG_OPTION+1))-1))
170 struct PAR_STATS_FLAGS ParStats; /* profile and stats output */
171 struct PAR_DEBUG_FLAGS Debug; /* debugging options */
172 rtsBool outputDisabled; /* Disable output for performance purposes */
173 rtsBool doFairScheduling; /* Fair-ish scheduling (round robin; no time-slices) */
175 nat thunksToPack; /* number of thunks in packet + 1 */
176 nat globalising; /* globalisation scheme */
177 nat maxLocalSparks; /* spark pool size */
178 nat maxThreads; /* thread pool size */
179 nat maxFishes; /* max number of active fishes */
180 rtsTime fishDelay; /* delay before sending a new fish */
187 nat nNodes; /* number of threads to run simultaneously */
188 rtsBool migrate; /* migrate threads between capabilities */
189 rtsBool wakeupMigrate; /* migrate a thread on wakeup */
190 unsigned int maxLocalSparks;
191 rtsBool parGcEnabled; /* enable parallel GC */
192 rtsBool parGcGen; /* do parallel GC in this generation
194 rtsBool parGcLoadBalancing; /* do load-balancing in parallel GC */
196 #endif /* THREADED_RTS */
199 struct GRAN_STATS_FLAGS {
200 rtsBool Full; /* Full .gr profile (rtsTrue) or only END events? */
201 rtsBool Suppressed; /* No .gr profile at all */
202 rtsBool Binary; /* Binary profile? (not yet implemented) */
203 rtsBool Sparks; /* Info on sparks in profile? */
204 rtsBool Heap; /* Info on heap allocs in profile? */
205 rtsBool NewLogfile; /* Use new log-file format? (not yet implemented) */
206 rtsBool Global; /* Global statistics? (printed on shutdown; no log file) */
209 struct GRAN_COST_FLAGS {
210 /* Communication Cost Variables -- set in main program */
211 nat latency; /* Latency for single packet */
212 nat additional_latency; /* Latency for additional packets */
214 nat lunblocktime; /* Time for local unblock */
215 nat gunblocktime; /* Time for global unblock */
216 nat mpacktime; /* Cost of creating a packet */
217 nat munpacktime; /* Cost of receiving a packet */
218 nat mtidytime; /* Cost of cleaning up after send */
220 nat threadcreatetime; /* Thread creation costs */
221 nat threadqueuetime; /* Cost of adding a thread to the running/runnable queue */
222 nat threaddescheduletime; /* Cost of descheduling a thread */
223 nat threadscheduletime; /* Cost of scheduling a thread */
224 nat threadcontextswitchtime; /* Cost of context switch */
226 /* Instruction Costs */
227 nat arith_cost; /* arithmetic instructions (+,i,< etc) */
228 nat branch_cost; /* branch instructions */
229 nat load_cost; /* load into register */
230 nat store_cost; /* store into memory */
231 nat float_cost; /* floating point operations */
233 nat heapalloc_cost; /* heap allocation costs */
235 /* Overhead for granularity control mechanisms */
236 /* overhead per elem of spark queue */
237 nat pri_spark_overhead;
238 /* overhead per elem of thread queue */
239 nat pri_sched_overhead;
242 struct GRAN_DEBUG_FLAGS {
243 /* flags to control debugging output in various subsystems */
244 rtsBool event_trace : 1; /* 1 */
245 rtsBool event_stats : 1; /* 2 */
246 rtsBool bq : 1; /* 4 */
247 rtsBool pack : 1; /* 8 */
248 rtsBool checkSparkQ : 1; /* 16 */
249 rtsBool thunkStealing : 1; /* 32 */
250 rtsBool randomSteal : 1; /* 64 */
251 rtsBool findWork : 1; /* 128 */
252 rtsBool unused : 1; /* 256 */
253 rtsBool pri : 1; /* 512 */
254 rtsBool checkLight : 1; /* 1024 */
255 rtsBool sortedQ : 1; /* 2048 */
256 rtsBool blockOnFetch : 1; /* 4096 */
257 rtsBool packBuffer : 1; /* 8192 */
258 rtsBool blockOnFetch_sanity : 1; /* 16384 */
261 #define MAX_GRAN_DEBUG_OPTION 14
262 #define GRAN_DEBUG_MASK(n) ((nat)(ldexp(1,n)))
263 #define MAX_GRAN_DEBUG_MASK ((nat)(ldexp(1,(MAX_GRAN_DEBUG_OPTION+1))-1))
266 struct GRAN_STATS_FLAGS GranSimStats; /* profile and stats output */
267 struct GRAN_COST_FLAGS Costs; /* cost metric for simulation */
268 struct GRAN_DEBUG_FLAGS Debug; /* debugging options */
270 nat maxThreads; /* ToDo: share with THREADED_RTS and GUM */
271 /* rtsBool labelling; */
273 nat packBufferSize_internal;
275 PEs proc; /* number of processors */
276 rtsBool Fishing; /* Simulate GUM style fishing mechanism? */
277 nat maxFishes; /* max number of spark or thread steals */
278 rtsTime time_slice; /* max time slice of one reduction thread */
280 /* GrAnSim-Light: This version puts no bound on the number of
281 processors but in exchange doesn't model communication costs
282 (all communication is 0 cost). Mainly intended to show maximal
283 degree of parallelism in the program (*not* to simulate the
284 execution on a real machine). */
288 rtsBool DoFairSchedule ; /* fair scheduling alg? default: unfair */
289 rtsBool DoAsyncFetch; /* async. communication? */
290 rtsBool DoStealThreadsFirst; /* prefer threads over sparks when stealing */
291 rtsBool DoAlwaysCreateThreads; /* eager thread creation */
292 rtsBool DoBulkFetching; /* bulk fetching */
293 rtsBool DoThreadMigration; /* allow to move threads */
294 nat FetchStrategy; /* what to do when waiting for data */
295 rtsBool PreferSparksOfLocalNodes; /* prefer local over global sparks */
296 rtsBool DoPrioritySparking; /* sparks sorted by priorities */
297 rtsBool DoPriorityScheduling; /* threads sorted by priorities */
298 nat SparkPriority; /* threshold for cut-off mechanism */
300 rtsBool RandomPriorities;
301 rtsBool InversePriorities;
302 rtsBool IgnorePriorities;
303 nat ThunksToPack; /* number of thunks in packet + 1 */
304 rtsBool RandomSteal; /* steal spark/thread from random proc */
305 rtsBool NoForward; /* no forwarding of fetch messages */
307 /* unsigned int debug; */
308 /* rtsBool event_trace; */
309 /* rtsBool event_trace_all; */
314 rtsBool showTickyStats;
319 #define MAX_PAPI_USER_EVENTS 8
322 nat eventType; /* The type of events to count */
324 char * userEvents[MAX_PAPI_USER_EVENTS];
327 #define PAPI_FLAG_CACHE_L1 1
328 #define PAPI_FLAG_CACHE_L2 2
329 #define PAPI_FLAG_BRANCH 3
330 #define PAPI_FLAG_STALLS 4
331 #define PAPI_FLAG_CB_EVENTS 5
332 #define PAPI_USER_EVENTS 6
336 /* Put them together: */
338 typedef struct _RTS_FLAGS {
339 /* The first portion of RTS_FLAGS is invariant. */
340 struct GC_FLAGS GcFlags;
341 struct CONCURRENT_FLAGS ConcFlags;
342 struct MISC_FLAGS MiscFlags;
343 struct DEBUG_FLAGS DebugFlags;
344 struct COST_CENTRE_FLAGS CcFlags;
345 struct PROFILING_FLAGS ProfFlags;
347 struct EVENTLOG_FLAGS EventLogFlags;
349 struct TICKY_FLAGS TickyFlags;
351 #if defined(THREADED_RTS) || defined(PAR)
352 struct PAR_FLAGS ParFlags;
355 struct GRAN_FLAGS GranFlags;
358 struct PAPI_FLAGS PapiFlags;
362 #ifdef COMPILING_RTS_MAIN
363 extern DLLIMPORT RTS_FLAGS RtsFlags;
365 /* Hack because the C code generator can't generate '&label'. */
366 extern RTS_FLAGS RtsFlags[];
368 extern RTS_FLAGS RtsFlags;
371 /* Routines that operate-on/to-do-with RTS flags: */
373 extern void initRtsFlagsDefaults(void);
374 extern void setupRtsFlags(int *argc, char *argv[], int *rts_argc, char *rts_argv[]);
375 extern void setProgName(char *argv[]);
379 * The printf formats are here, so we are less likely to make
380 * overly-long filenames (with disastrous results). No more than 128
384 #define STATS_FILENAME_MAXLEN 128
386 #define GR_FILENAME_FMT "%0.124s.gr"
387 #define GR_FILENAME_FMT_GUM "%0.120s.%03d.%s"
388 #define HP_FILENAME_FMT "%0.124s.hp"
389 #define LIFE_FILENAME_FMT "%0.122s.life"
390 #define PROF_FILENAME_FMT "%0.122s.prof"
391 #define PROF_FILENAME_FMT_GUM "%0.118s.%03d.prof"
392 #define QP_FILENAME_FMT "%0.124s.qp"
393 #define STAT_FILENAME_FMT "%0.122s.stat"
394 #define TICKY_FILENAME_FMT "%0.121s.ticky"
395 #define TIME_FILENAME_FMT "%0.122s.time"
396 #define TIME_FILENAME_FMT_GUM "%0.118s.%03d.time"
398 /* an "int" so as to match normal "argc" */
399 /* Now defined in Stg.h (lib/std/cbits need these too.)
400 extern int prog_argc;
401 extern char **prog_argv;
403 extern int rts_argc; /* ditto */
404 extern char *rts_argv[];
406 #endif /* RTSFLAGS_H */