dw

Obtaining RK3066 boot ROM.

Here are my steps.

At first, I took a look to RK30xxLoader(L)_V1.18.bin. This file appears in update.img for my device. So, I unpacked update.img using rk29Kitchen.

strings on that file returns nothing interesting, so I assumed the file is crypted

dw

#
# with 2047 of 2048 reader slots allocated
#

$ python -mtimeit -s 'import lmdb; e = lmdb.open("/tmp/test")'  'e.begin().abort()'
100000 loops, best of 3: 10.1 usec per loop

$ git stash &>/dev/null ; python setup.py build &> /dev/null
$ python -mtimeit -s 'import lmdb; e = lmdb.open("/tmp/test")'  'e.begin().abort()'
1000000 loops, best of 3: 0.47 usec per loop

dw

[00:34:19 eldil!1 ~] cat bin/ts
#!/bin/bash

while read; do
    echo `date +%Y-%m-%d+T%H:%M:%S` "$REPLY"
done

dw

// create 1 million files, final directory size ~4.1gb:
// for i in {1..1024} ; do mkdir -p junk/$i ; for j in {1..1024} ; do cp /etc/hostname junk/$i/$j ; done; done
/*
[20:23:18 k2!58 ~] gcc -O2 -oa a.c
[20:23:19 k2!59 ~] time ./a

real    0m13.000s
*/

#include <sys/types.h>

dw

/**
 * Match methods on `obj` of the form "_onCssClassAction", extracting
 * "CssClass" and "Action", then:
 *
 *      - Transform "CssClass" to ".cssClass"
 *      - Transform "Action" to "action"
 *      - Find elements matching .cssClass inside `elem`
 *      - Wire up the corresponding jQuery action (e.g. click()) to a bound
 *        copy of the method.
 *

dw

import collections, types

class frozendict(collections.UserDict):
    def __init__(self, d=None, **kw):
        d = kw if d is None else dict(d, **kw)
        self.data = types.MappingProxyType(d)
        self._h = sum(map(hash, self.data.items()))

    __hash__ = lambda self: self._h
    __repr__ = lambda self: repr(dict(self))

dw

[23:19:21 k3!2 py-lmdb] ~/pypy-2.4.0/bin/pypy examples/dirtybench.py
permutate 1876098 words avglen 13 took 2.74sec
DB_PATH: /ram/testdb
                                  insert:  3.070s     611142/sec

stat: {'branch_pages': 244L, 'entries': 1876098L, 'overflow_pages': 0L, 'psize': 4096, 'depth': 4, 'leaf_pages': 25385L}
k+v size 50911.31kb avg 27, on-disk size: 101540.00kb avg 55

                 enum (key, value) pairs:  0.544s    3447601/sec
         reverse enum (key, value) pairs:  0.495s    3790924/sec

dw

import lmdb

def test():

    env = lmdb.open("test.lmdb", max_dbs=1, map_size=15*1024*1024)
    try:
        value = bytearray(" "*9*1024*1024)

        with env.begin(write=True, buffers=True) as txn:
            txn.put("big", value, dupdata=False, overwrite=True)

dw

def flags(names):
    """Return the result of ORing a set of (space separated) :py:mod:`termios`
    module constants together."""
    return sum(getattr(termios, name) for name in names.split())


def flags(names):
    """Return the result of ORing a set of (space separated) :py:mod:`termios`
    module constants together."""
    n = 0

dw

import subprocess
import mitogen

def main(router):
    u = router.ssh(hostname='u')
    root = router.sudo(via=u, password='x')
    for x in xrange(100):
        root.call(subprocess.check_call, ['true'])

if __name__ == '__main__' and mitogen.is_master: