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first working version of benchmark logic

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This commit is contained in:
Christian Grothoff 2016-06-15 17:54:36 +02:00
parent f59246e763
commit c2bb85ffdd
4 changed files with 68 additions and 56 deletions
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1
.gitignore vendored
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@ -44,6 +44,7 @@ src/exchange-tools/taler-exchange-reservemod
src/exchange-tools/taler-exchange-wire
src/exchangedb/perf-exchangedb
src/benchmark/taler-exchange-benchmark
src/benchmark/test_benchmark_home/.local/share/taler/exchange/live-keys/
src/json/test_json
src/wire/test_sepa_wireformat
src/wire/test_wire_plugin

2
src/benchmark/bank_details.json
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@ -1 +1 @@
{"type":"test", "bank_uri":"https://bank.test.taler.net/", "account_number":63}
{"type":"test", "bank_uri":"http://localhost:8082/", "account_number":63}

2
src/benchmark/merchant_details.json
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@ -1 +1 @@
{"type":"test", "bank_uri":"https://bank.test.taler.net/", "account_number":64}
{"type":"test", "bank_uri":"http://localhost:8082/", "account_number":64}

119
src/benchmark/taler-exchange-benchmark.c
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@ -40,6 +40,34 @@
*/
#define INVALID_COIN_SLACK 10
/**
* The benchmark withdraws always the same denomination, since the calculation
* for refreshing is statically done (at least in its very first version).
*/
#define COIN_VALUE 8
/**
* Probability a coin can be refreshed.
* This probability multiplied by the number of coins
* generated during the average refresh must be smaller
* than one. The variance must be covered by the
* #INVALID_COIN_SLACK.
*/
#define REFRESH_PROBABILITY 0.1
/**
* Large enough value to allow having 12 coins per reserve without parsing
* /keys in the first place
*/
#define RESERVE_VALUE 1000
/**
* How many coins (AKA withdraw operations) per reserve should be withdrawn at the same time.
*/
#define COINS_PER_RESERVE 12
/**
* Needed information for a reserve. Other values are the same for all reserves, therefore defined in global variables
*/
@ -323,39 +351,11 @@ static char *exchange_uri;
*/
static char *exchange_admin_uri;
/**
* How many coins (AKA withdraw operations) per reserve should be withdrawn
*/
#define COINS_PER_RESERVE 12
/**
* Used currency (read from /keys' output)
*/
static char *currency;
/**
* Large enough value to allow having 12 coins per reserve without parsing
* /keys in the first place
*/
#define RESERVE_VALUE 1000
/**
* The benchmark withdraws always the same denomination, since the calculation
* for refreshing is statically done (at least in its very first version).
*/
#define COIN_VALUE 8
/**
* Probability a coin can be spent
*/
#define SPEND_PROBABILITY 0.1
/**
* Probability a coin can be refreshed
*/
#define REFRESH_PROBABILITY 0.4
/**
* List of coins to get in return to a melt operation. Just a
* static list for now as every melt operation is carried out
@ -544,7 +544,9 @@ reveal_cb (void *cls,
num_invalid_coins--;
fresh_coin->invalid = GNUNET_NO;
fresh_coin->pk = find_pk (keys, &coin->denoms[i]);
fresh_coin->sig = sigs[i];
GNUNET_assert (NULL == fresh_coin->sig.rsa_signature);
fresh_coin->sig.rsa_signature =
GNUNET_CRYPTO_rsa_signature_dup (sigs[i].rsa_signature);
fresh_coin->coin_priv = coin_privs[i];
fresh_coin->left = coin->denoms[i];
}
@ -598,20 +600,24 @@ melt_cb (void *cls,
/**
* Function called upon completion of our /reserve/withdraw request.
* This is merely the function which spends withdrawn coins
* Mark coin as invalid.
*
* @param cls closure with the `struct Coin` we are withdrawing
* @param http_status HTTP response code, #MHD_HTTP_OK (200) for successful status request
* 0 if the exchange's reply is bogus (fails to follow the protocol)
* @param sig signature over the coin, NULL on error
* @param full_response full response from the exchange (for logging, in case of errors)
* @param coin coin to mark invalid
*/
static void
reserve_withdraw_cb (void *cls,
unsigned int http_status,
const struct TALER_DenominationSignature *sig,
const json_t *full_response);
invalidate_coin (struct Coin *coin)
{
GNUNET_CONTAINER_DLL_insert (invalid_coins_head,
invalid_coins_tail,
coin);
num_invalid_coins++;
coin->invalid = GNUNET_YES;
if (NULL != coin->sig.rsa_signature)
{
GNUNET_CRYPTO_rsa_signature_free (coin->sig.rsa_signature);
coin->sig.rsa_signature = NULL;
}
}
/**
@ -661,6 +667,10 @@ refresh_coin (struct Coin *coin)
ndenoms2,
dpks,
&blob_size);
invalidate_coin (coin);
GNUNET_array_grow (dpks,
ndenoms2,
0);
if (NULL == blob)
{
fail ("Failed to prepare refresh");
@ -715,10 +725,15 @@ deposit_cb (void *cls,
"Coin #%d correctly spent!\n",
coin->coin_index);
if (GNUNET_YES == coin->refresh)
{
refresh_coin (coin);
}
else
{
invalidate_coin (coin);
continue_master_task ();
}
}
/**
@ -830,11 +845,6 @@ spend_coin (struct Coin *coin,
fail ("An error occurred while calling deposit API");
return;
}
GNUNET_CONTAINER_DLL_insert (invalid_coins_head,
invalid_coins_tail,
coin);
num_invalid_coins++;
coin->invalid = GNUNET_YES;
}
@ -894,14 +904,14 @@ withdraw_coin (struct Coin *coin)
keys = TALER_EXCHANGE_get_keys (exchange);
r = &reserves[coin->reserve_index];
GNUNET_assert (-1 != TALER_amount_cmp (&r->left,
&amount));
coin_priv = GNUNET_CRYPTO_eddsa_key_create ();
coin->coin_priv.eddsa_priv = *coin_priv;
GNUNET_free (coin_priv);
TALER_amount_get_zero (currency,
&amount);
amount.value = COIN_VALUE;
GNUNET_assert (-1 != TALER_amount_cmp (&r->left,
&amount));
GNUNET_assert (NULL != (coin->pk = find_pk (keys, &amount)));
coin->wsh =
TALER_EXCHANGE_reserve_withdraw (exchange,
@ -1034,8 +1044,8 @@ benchmark_run (void *cls)
/* By default, pick a random valid coin to spend */
for (i=0;i<1000;i++)
{
coin = &coins[GNUNET_CRYPTO_random_u32 (ncoins,
GNUNET_CRYPTO_QUALITY_WEAK)];
coin = &coins[GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK,
ncoins)];
if (GNUNET_YES == coin->invalid)
continue; /* unlucky draw, try again */
if (1 == coin->left.value)
@ -1210,6 +1220,11 @@ do_shutdown (void *cls)
GNUNET_free (coin->blob);
coin->blob = NULL;
}
if (NULL != coin->sig.rsa_signature)
{
GNUNET_CRYPTO_rsa_signature_free (coin->sig.rsa_signature);
coin->sig.rsa_signature = NULL;
}
}
if (NULL != bank_details)
{
@ -1362,11 +1377,7 @@ run (void *cls)
coin = &coins[coin_index];
coin->coin_index = coin_index;
coin->reserve_index = i;
coin->invalid = GNUNET_YES;
GNUNET_CONTAINER_DLL_insert (invalid_coins_head,
invalid_coins_tail,
coin);
num_invalid_coins++;
invalidate_coin (coin);
}
}