Changeset 708ae38


Ignore:
Timestamp:
Mar 15, 2022, 5:11:50 PM (7 months ago)
Author:
Thierry Delisle <tdelisle@…>
Branches:
enum, master, pthread-emulation, qualifiedEnum
Children:
9d8124f
Parents:
a552a8c
Message:

Some more cleanup and grow/shrink now readjusts io timestamps.
(They are still unused).

Location:
libcfa/src
Files:
1 added
14 edited
1 moved

Legend:

Unmodified
Added
Removed
  • libcfa/src/Makefile.am

    ra552a8c r708ae38  
    119119        concurrency/exception.hfa \
    120120        concurrency/kernel.hfa \
     121        concurrency/kernel/cluster.hfa \
    121122        concurrency/locks.hfa \
    122123        concurrency/monitor.hfa \
     
    134135        concurrency/io/call.cfa \
    135136        concurrency/iofwd.hfa \
    136         concurrency/kernel/cluster.cfa \
    137         concurrency/kernel_private.hfa \
     137        concurrency/kernel/private.hfa \
    138138        concurrency/kernel/startup.cfa \
    139139        concurrency/preemption.cfa \
  • libcfa/src/concurrency/coroutine.cfa

    ra552a8c r708ae38  
    2727#include <unwind.h>
    2828
    29 #include "kernel_private.hfa"
     29#include "kernel/private.hfa"
    3030#include "exception.hfa"
    3131#include "math.hfa"
  • libcfa/src/concurrency/io.cfa

    ra552a8c r708ae38  
    4141        #include "kernel.hfa"
    4242        #include "kernel/fwd.hfa"
    43         #include "kernel_private.hfa"
     43        #include "kernel/private.hfa"
    4444        #include "io/types.hfa"
    4545
  • libcfa/src/concurrency/io/setup.cfa

    ra552a8c r708ae38  
    5959        #include "bitmanip.hfa"
    6060        #include "fstream.hfa"
    61         #include "kernel_private.hfa"
     61        #include "kernel/private.hfa"
    6262        #include "thread.hfa"
    6363#pragma GCC diagnostic pop
  • libcfa/src/concurrency/kernel.cfa

    ra552a8c r708ae38  
    3535
    3636//CFA Includes
    37 #include "kernel_private.hfa"
     37#include "kernel/private.hfa"
    3838#include "preemption.hfa"
    3939#include "strstream.hfa"
  • libcfa/src/concurrency/kernel.hfa

    ra552a8c r708ae38  
    227227
    228228                struct {
    229                         // Number of I/O subqueues
    230                         volatile size_t count;
    231 
    232                         // Time since subqueues were processed
     229                        // Time since subqueues were processed
    233230                        __timestamp_t * volatile tscs;
     231
     232                        // Number of I/O subqueues
     233                        size_t count;
    234234                } io;
    235235
  • libcfa/src/concurrency/kernel/cluster.cfa

    ra552a8c r708ae38  
    55// file "LICENCE" distributed with Cforall.
    66//
    7 // cluster.cfa.cfa -- file that includes helpers for subsystem that need
    8 //                              cluster wide support
     7// cluster.cfa -- file that includes helpers for subsystem that need cluster wide support
    98//
    109// Author           : Thierry Delisle
    11 // Created On       : Fri 03 11 12:39:24 2022
     10// Created On       : Fri Mar 11 12:39:24 2022
    1211// Last Modified By :
    1312// Last Modified On :
     
    2019#include "bits/defs.hfa"
    2120#include "device/cpu.hfa"
    22 #include "kernel_private.hfa"
     21#include "kernel/cluster.hfa"
     22#include "kernel/private.hfa"
    2323
    2424#include "stdlib.hfa"
     
    247247// fixes the list so that the pointers back to anchors aren't left dangling
    248248static inline void fix(__intrusive_lane_t & ll) {
    249                         if(is_empty(ll)) {
    250                                 verify(ll.anchor.next == 0p);
    251                                 ll.prev = mock_head(ll);
    252                         }
     249        if(is_empty(ll)) {
     250                verify(ll.anchor.next == 0p);
     251                ll.prev = mock_head(ll);
     252        }
    253253}
    254254
     
    321321        }
    322322
     323        // Fix the io times
     324        cltr->sched.io.count = target;
     325        fix_times(cltr->sched.io.tscs, cltr->sched.io.count);
     326
    323327        // realloc the caches
    324328        cltr->sched.caches = alloc( target, cltr->sched.caches`realloc );
     
    406410        cltr->sched.caches = alloc( target, cltr->sched.caches`realloc );
    407411
    408 
     412        // Fix the io times
     413        cltr->sched.io.count = target;
     414        fix_times(cltr->sched.io.tscs, cltr->sched.io.count);
    409415
    410416        reassign_cltr_id(cltr);
  • libcfa/src/concurrency/kernel/private.hfa

    ra552a8c r708ae38  
    55// file "LICENCE" distributed with Cforall.
    66//
    7 // kernel_private.hfa --
     7// kernel/private.hfa --
    88//
    99// Author           : Thierry Delisle
     
    1717
    1818#if !defined(__cforall_thread__)
    19         #error kernel_private.hfa should only be included in libcfathread source
     19        #error kernel/private.hfa should only be included in libcfathread source
    2020#endif
    2121
     
    3333#else
    3434        #ifndef _GNU_SOURCE
    35         #error kernel_private requires gnu_source
     35        #error kernel/private requires gnu_source
    3636        #endif
    3737        #include <sched.h>
     
    369369void ready_queue_close(struct cluster * cltr);
    370370
    371 //-----------------------------------------------------------------------
    372 // Calc moving average based on existing average, before and current time.
    373 static inline unsigned long long moving_average(unsigned long long currtsc, unsigned long long instsc, unsigned long long old_avg) {
    374         /* paranoid */ verifyf( currtsc < 45000000000000000, "Suspiciously large current time: %'llu (%llx)\n", currtsc, currtsc );
    375         /* paranoid */ verifyf( instsc  < 45000000000000000, "Suspiciously large insert time: %'llu (%llx)\n", instsc, instsc );
    376         /* paranoid */ verifyf( old_avg < 15000000000000, "Suspiciously large previous average: %'llu (%llx)\n", old_avg, old_avg );
    377 
    378         const unsigned long long new_val = currtsc > instsc ? currtsc - instsc : 0;
    379         const unsigned long long total_weight = 16;
    380         const unsigned long long new_weight   = 4;
    381         const unsigned long long old_weight = total_weight - new_weight;
    382         const unsigned long long ret = ((new_weight * new_val) + (old_weight * old_avg)) / total_weight;
    383         return ret;
    384 }
    385 
    386 //-----------------------------------------------------------------------
    387 // Calc age a timestamp should be before needing help.
    388 forall(Data_t * | { unsigned long long ts(Data_t & this); })
    389 static inline unsigned long long calc_cutoff(
    390         const unsigned long long ctsc,
    391         const processor * proc,
    392         size_t count,
    393         Data_t * data,
    394         __timestamp_t * tscs,
    395         const unsigned shard_factor
    396 ) {
    397         unsigned start = proc->rdq.id;
    398         unsigned long long max = 0;
    399         for(i; shard_factor) {
    400                 unsigned long long ptsc = ts(data[start + i]);
    401                 if(ptsc != -1ull) {
    402                         /* paranoid */ verify( start + i < count );
    403                         unsigned long long tsc = moving_average(ctsc, ptsc, tscs[start + i].ma);
    404                         if(tsc > max) max = tsc;
    405                 }
    406         }
    407         return (max + 2 * max) / 2;
    408 }
    409 
    410 static struct {
    411         const unsigned readyq;
    412 } __shard_factor __attribute__((unused)) = { 2 };
    413 
    414371// Local Variables: //
    415372// mode: c //
  • libcfa/src/concurrency/kernel/startup.cfa

    ra552a8c r708ae38  
    3232
    3333// CFA Includes
    34 #include "kernel_private.hfa"
     34#include "kernel/private.hfa"
    3535#include "startup.hfa"                                  // STARTUP_PRIORITY_XXX
    3636#include "limits.hfa"
  • libcfa/src/concurrency/locks.cfa

    ra552a8c r708ae38  
    1919
    2020#include "locks.hfa"
    21 #include "kernel_private.hfa"
     21#include "kernel/private.hfa"
    2222
    2323#include <kernel.hfa>
  • libcfa/src/concurrency/monitor.cfa

    ra552a8c r708ae38  
    2222#include <inttypes.h>
    2323
    24 #include "kernel_private.hfa"
     24#include "kernel/private.hfa"
    2525
    2626#include "bits/algorithm.hfa"
  • libcfa/src/concurrency/mutex.cfa

    ra552a8c r708ae38  
    2121#include "mutex.hfa"
    2222
    23 #include "kernel_private.hfa"
     23#include "kernel/private.hfa"
    2424
    2525//-----------------------------------------------------------------------------
  • libcfa/src/concurrency/preemption.cfa

    ra552a8c r708ae38  
    3131#include "bits/debug.hfa"
    3232#include "bits/signal.hfa"
    33 #include "kernel_private.hfa"
     33#include "kernel/private.hfa"
    3434
    3535
  • libcfa/src/concurrency/ready_queue.cfa

    ra552a8c r708ae38  
    2424#include "bits/defs.hfa"
    2525#include "device/cpu.hfa"
    26 #include "kernel_private.hfa"
     26#include "kernel/cluster.hfa"
     27#include "kernel/private.hfa"
    2728
    2829#include "limits.hfa"
     
    122123        __cfadbg_print_safe(ready_queue, "Kernel : pop from %u\n", this);
    123124
    124         // Figure out the current cpu and make sure it is valid
    125         const int cpu = __kernel_getcpu();
    126         /* paranoid */ verify(cpu >= 0);
    127         /* paranoid */ verify(cpu < cpu_info.hthrd_count);
    128         unsigned this_cache = cpu_info.llc_map[cpu].cache;
    129 
    130         // Super important: don't write the same value over and over again
    131         // We want to maximise our chances that his particular values stays in cache
    132         if(caches[this / __shard_factor.readyq].id != this_cache)
    133                 __atomic_store_n(&caches[this / __shard_factor.readyq].id, this_cache, __ATOMIC_RELAXED);
    134 
     125        // Figure out the current cache is
     126        const unsigned this_cache = cache_id(cltr, this / __shard_factor.readyq);
    135127        const unsigned long long ctsc = rdtscl();
    136128
  • libcfa/src/concurrency/thread.cfa

    ra552a8c r708ae38  
    1919#include "thread.hfa"
    2020
    21 #include "kernel_private.hfa"
     21#include "kernel/private.hfa"
    2222#include "exception.hfa"
    2323
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