From 5c2dad487e6af1a48fa3a1f3d985b6b891788bde Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Bj=C3=B6rn=20Gustavsson?= Date: Thu, 10 May 2012 12:09:07 +0200 Subject: Remove stale code for hybrid heap and incremental GC The hybrid heap emulator was last working in the non-SMP R11B run-time system. When the constant pools were introduced in R12B, the hybrid heap emulator was not updated to handle them. At this point, the harm from reduced readability of the code is greater than any potential usefulness of keeping the code. --- erts/emulator/beam/erl_process.c | 88 ---------------------------------------- 1 file changed, 88 deletions(-) (limited to 'erts/emulator/beam/erl_process.c') diff --git a/erts/emulator/beam/erl_process.c b/erts/emulator/beam/erl_process.c index 09ca536188..bd4c56eaa4 100644 --- a/erts/emulator/beam/erl_process.c +++ b/erts/emulator/beam/erl_process.c @@ -28,7 +28,6 @@ #include "erl_vm.h" #include "global.h" #include "erl_process.h" -#include "erl_nmgc.h" #include "error.h" #include "bif.h" #include "erl_db.h" @@ -245,11 +244,6 @@ struct erts_system_monitor_flags_t erts_system_monitor_flags; Eterm erts_system_profile; struct erts_system_profile_flags_t erts_system_profile_flags; -#ifdef HYBRID -Uint erts_num_active_procs; -Process** erts_active_procs; -#endif - #if ERTS_MAX_PROCESSES > 0x7fffffff #error "Need to store process_count in another type" #endif @@ -472,12 +466,6 @@ erts_init_process(int ncpu) process_tab = (Process**) erts_alloc(ERTS_ALC_T_PROC_TABLE, erts_max_processes*sizeof(Process*)); sys_memzero(process_tab, erts_max_processes * sizeof(Process*)); -#ifdef HYBRID - erts_active_procs = (Process**) - erts_alloc(ERTS_ALC_T_ACTIVE_PROCS, - erts_max_processes * sizeof(Process*)); - erts_num_active_procs = 0; -#endif erts_smp_mtx_init(&proc_tab_mtx, "proc_tab"); p_last = -1; @@ -6926,7 +6914,6 @@ Process *schedule(Process *p, int calls) #endif ASSERT(p->status != P_SUSPENDED); /* Never run a suspended process */ - ACTIVATE(p); reds = context_reds; if (IS_TRACED(p)) { @@ -6967,7 +6954,6 @@ Process *schedule(Process *p, int calls) } p->fcalls = reds; - ASSERT(IS_ACTIVE(p)); ERTS_SMP_CHK_HAVE_ONLY_MAIN_PROC_LOCK(p); return p; } @@ -7315,9 +7301,7 @@ erl_create_process(Process* parent, /* Parent of process (default group leader). ErtsRunQueue *rq, *notify_runq; Process *p; Sint arity; /* Number of arguments. */ -#ifndef HYBRID Uint arg_size; /* Size of arguments. */ -#endif Uint sz; /* Needed words on heap. */ Uint heap_need; /* Size needed on heap. */ Eterm res = THE_NON_VALUE; @@ -7326,17 +7310,6 @@ erl_create_process(Process* parent, /* Parent of process (default group leader). erts_smp_proc_lock(parent, ERTS_PROC_LOCKS_ALL_MINOR); #endif -#ifdef HYBRID - /* - * Copy the arguments to the global heap - * Since global GC might occur we want to do this before adding the - * new process to the process_tab. - */ - BM_SWAP_TIMER(system,copy); - LAZY_COPY(parent,args); - BM_SWAP_TIMER(copy,system); - heap_need = 0; -#endif /* HYBRID */ /* * Check for errors. */ @@ -7359,12 +7332,10 @@ erl_create_process(Process* parent, /* Parent of process (default group leader). #endif BM_COUNT(processes_spawned); -#ifndef HYBRID BM_SWAP_TIMER(system,size); arg_size = size_object(args); BM_SWAP_TIMER(size,system); heap_need = arg_size; -#endif p->flags = erts_default_process_flags; @@ -7415,9 +7386,6 @@ erl_create_process(Process* parent, /* Parent of process (default group leader). p->heap = (Eterm *) ERTS_HEAP_ALLOC(ERTS_ALC_T_HEAP, sizeof(Eterm)*sz); p->old_hend = p->old_htop = p->old_heap = NULL; p->high_water = p->heap; -#ifdef INCREMENTAL - p->scan_top = p->high_water; -#endif p->gen_gcs = 0; p->stop = p->hend = p->heap + sz; p->htop = p->heap; @@ -7443,19 +7411,10 @@ erl_create_process(Process* parent, /* Parent of process (default group leader). BM_STOP_TIMER(system); BM_MESSAGE(args,p,parent); BM_START_TIMER(system); -#ifdef HYBRID - p->arg_reg[2] = args; -#ifdef INCREMENTAL - p->active = 0; - if (ptr_val(args) >= inc_fromspc && ptr_val(args) < inc_fromend) - INC_ACTIVATE(p); -#endif -#else BM_SWAP_TIMER(system,copy); p->arg_reg[2] = copy_struct(args, arg_size, &p->htop, &p->off_heap); BM_MESSAGE_COPIED(arg_size); BM_SWAP_TIMER(copy,system); -#endif p->arity = 3; p->fvalue = NIL; @@ -7513,13 +7472,6 @@ erl_create_process(Process* parent, /* Parent of process (default group leader). #endif p->parent = parent->id == ERTS_INVALID_PID ? NIL : parent->id; -#ifdef HYBRID - p->rrma = NULL; - p->rrsrc = NULL; - p->nrr = 0; - p->rrsz = 0; -#endif - INIT_HOLE_CHECK(p); #ifdef DEBUG p->last_old_htop = NULL; @@ -7588,15 +7540,6 @@ erl_create_process(Process* parent, /* Parent of process (default group leader). so->mref = mref; } -#ifdef HYBRID - /* - * Add process to the array of active processes. - */ - ACTIVATE(p); - p->active_index = erts_num_active_procs++; - erts_active_procs[p->active_index] = p; -#endif - #ifdef ERTS_SMP p->scheduler_data = NULL; p->is_exiting = 0; @@ -7707,9 +7650,6 @@ void erts_init_empty_process(Process *p) p->reg = NULL; p->heap_sz = 0; p->high_water = NULL; -#ifdef INCREMENTAL - p->scan_top = NULL; -#endif p->old_hend = NULL; p->old_htop = NULL; p->old_heap = NULL; @@ -7761,14 +7701,6 @@ void erts_init_empty_process(Process *p) #endif #endif - ACTIVATE(p); - -#ifdef HYBRID - p->rrma = NULL; - p->rrsrc = NULL; - p->nrr = 0; - p->rrsz = 0; -#endif INIT_HOLE_CHECK(p); #ifdef DEBUG p->last_old_htop = NULL; @@ -7816,9 +7748,6 @@ erts_debug_verify_clean_empty_process(Process* p) ASSERT(p->reg == NULL); ASSERT(p->heap_sz == 0); ASSERT(p->high_water == NULL); -#ifdef INCREMENTAL - ASSERT(p->scan_top == NULL); -#endif ASSERT(p->old_hend == NULL); ASSERT(p->old_htop == NULL); ASSERT(p->old_heap == NULL); @@ -7966,22 +7895,6 @@ delete_process(Process* p) ASSERT(!p->suspend_monitors); p->fvalue = NIL; - -#ifdef HYBRID - erts_active_procs[p->active_index] = - erts_active_procs[--erts_num_active_procs]; - erts_active_procs[p->active_index]->active_index = p->active_index; -#ifdef INCREMENTAL - if (INC_IS_ACTIVE(p)) - INC_DEACTIVATE(p); -#endif - - if (p->rrma != NULL) { - erts_free(ERTS_ALC_T_ROOTSET,p->rrma); - erts_free(ERTS_ALC_T_ROOTSET,p->rrsrc); - } -#endif - } static ERTS_INLINE void @@ -8353,7 +8266,6 @@ send_exit_signal(Process *c_p, /* current process if and only set_proc_exiting(rp, is_immed(rsn) ? rsn : copy_object(rsn, rp), NULL); - ACTIVATE(rp); if (old_status != P_RUNABLE && old_status != P_RUNNING) erts_add_to_runq(rp); } -- cgit v1.2.3