nihilist/monero
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Update to RandomX v1.1.3, simplify

Browse Source 
We don't need to detect if the cache has changed, just always
call to set it on the VM. The call will be a no-op if the cache
hasn't changed.
This commit is contained in:
Howard Chu 2019-10-05 18:51:20 +01:00
parent 1c600a492f
commit 2675cf4483
No known key found for this signature in database
GPG Key ID: FD2A70B44AB11BA7
2 changed files with 3 additions and 20 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
external/randomx vendored

@ -1 +1 @@
Subproject commit 519b9cf70540bdd996e806251cde335c8eef8aca
Subproject commit 298cc77095c8992e30ecdd4ca0aa09a969a62bc1

21
src/crypto/rx-slow-hash.c
View File

@ -63,8 +63,6 @@ static rx_state rx_s[2] = {{CTHR_MUTEX_INIT,{0},0,0},{CTHR_MUTEX_INIT,{0},0,0}};
static randomx_dataset *rx_dataset;
static uint64_t rx_dataset_height;
static THREADV randomx_vm *rx_vm = NULL;
static THREADV int rx_toggle = -1;
static THREADV char rx_seedhash[HASH_SIZE];
static void local_abort(const char *msg)
{
@ -234,7 +232,6 @@ static void rx_initdata(randomx_cache *rs_cache, const int miners, const uint64_
void rx_slow_hash(const uint64_t mainheight, const uint64_t seedheight, const char *seedhash, const void *data, size_t length,
char *hash, int miners, int is_alt) {
uint64_t s_height = rx_seedheight(mainheight);
int changed = 0;
int toggle = (s_height & SEEDHASH_EPOCH_BLOCKS) != 0;
randomx_flags flags = RANDOMX_FLAG_DEFAULT;
rx_state *rx_sp;
@ -256,9 +253,6 @@ void rx_slow_hash(const uint64_t mainheight, const uint64_t seedheight, const ch
}
toggle ^= (is_alt != 0);
if (toggle != rx_toggle)
changed = 1;
rx_toggle = toggle;
rx_sp = &rx_s[toggle];
CTHR_MUTEX_LOCK(rx_sp->rs_mutex);
@ -283,11 +277,7 @@ void rx_slow_hash(const uint64_t mainheight, const uint64_t seedheight, const ch
rx_sp->rs_cache = cache;
rx_sp->rs_height = seedheight;
memcpy(rx_sp->rs_hash, seedhash, HASH_SIZE);
changed = 1;
}
/* only non-miners use rx_seedhash */
if (!miners && !changed && memcmp(seedhash, rx_seedhash, HASH_SIZE))
changed = 1;
if (rx_vm == NULL) {
randomx_flags flags = RANDOMX_FLAG_DEFAULT;
if (use_rx_jit()) {
@ -315,9 +305,6 @@ void rx_slow_hash(const uint64_t mainheight, const uint64_t seedheight, const ch
mwarning(RX_LOGCAT, "Couldn't allocate RandomX dataset for miner");
}
CTHR_MUTEX_UNLOCK(rx_dataset_mutex);
} else {
/* only non-miners use rx_seedhash */
memcpy(rx_seedhash, seedhash, HASH_SIZE);
}
rx_vm = randomx_create_vm(flags | RANDOMX_FLAG_LARGE_PAGES, rx_sp->rs_cache, rx_dataset);
if(rx_vm == NULL) { //large pages failed
@ -335,13 +322,9 @@ void rx_slow_hash(const uint64_t mainheight, const uint64_t seedheight, const ch
if (rx_dataset != NULL && rx_dataset_height != seedheight)
rx_initdata(cache, miners, seedheight);
CTHR_MUTEX_UNLOCK(rx_dataset_mutex);
} else if (changed) {
} else {
/* this is a no-op if the cache hasn't changed */
randomx_vm_set_cache(rx_vm, rx_sp->rs_cache);
/* remember the seedhash being used by the current VM. Other threads may set
* rx_sp->rs_cache to the correct value, but we still have to know if the
* current rx_vm has been set to use it or not.
*/
memcpy(rx_seedhash, seedhash, HASH_SIZE);
}
/* mainchain users can run in parallel */
if (!is_alt)