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package main | |
import ( | |
"errors" | |
"fmt" | |
"math/rand" | |
"sync" | |
"time" | |
) |
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package main | |
import ( | |
"errors" | |
"fmt" | |
"net" | |
"net/http" | |
"sync" | |
"time" | |
) |
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package main | |
import ( | |
"fmt" | |
"net/http" | |
) | |
const maxConcurrentRequests = 100 | |
type Response struct { |
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package main | |
import ( | |
"fmt" | |
"sort" | |
) | |
/* | |
Use sort.Sort(data Interface). | |
Data is an object that is not necessarily a slice. |
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Latency Comparison Numbers | |
-------------------------- | |
L1 cache reference 0.5 ns | |
Branch mispredict 5 ns | |
L2 cache reference 7 ns 14x L1 cache | |
Mutex lock/unlock 25 ns | |
Main memory reference 100 ns 20x L2 cache, 200x L1 cache | |
Compress 1K bytes with Zippy 3,000 ns 3 us | |
Send 1K bytes over 1 Gbps network 10,000 ns 10 us | |
Read 4K randomly from SSD* 150,000 ns 150 us ~1GB/sec SSD |
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<?php | |
if (!function_exists('interface_exists')) { | |
die('PHP version too old'); | |
} | |
$throwables = listThrowableClasses(); | |
$throwablesPerParent = splitInParents($throwables); | |
printTree($throwablesPerParent); | |
if (count($throwablesPerParent) !== 0) { | |
die('ERROR!!!'); |
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namespace common\components; | |
class Model extends yii\base\Model { | |
/** | |
* Saves multiple models. | |
* | |
* @param ActiveRecord[] $models | |
* @return bool | |
*/ |
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import sys | |
def get_size(obj, seen=None): | |
"""Recursively finds size of objects""" | |
size = sys.getsizeof(obj) | |
if seen is None: | |
seen = set() | |
obj_id = id(obj) | |
if obj_id in seen: | |
return 0 |
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def sizeof_fmt(num, suffix='B'): | |
for unit in ['','Ki','Mi','Gi','Ti','Pi','Ei','Zi']: | |
if abs(num) < 1024.0: | |
return "%3.1f%s%s" % (num, unit, suffix) | |
num /= 1024.0 | |
return "%.1f%s%s" % (num, 'Yi', suffix) |
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<?php | |
namespace console\controllers; | |
use yii\console\Controller; | |
use yii\helpers\Console; | |
/** | |
* Class AbstractDaemonController | |
* Abstract class to build daemon console commands |