Siyuan Zhou visualzhou
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| Tested on CIMS energon3 server, 8 cores. The code is in branch mutex_test. | |
| CPU Time (by std::clock()) | |
| ========================== | |
| + RWLock | |
| Running Concurrent(Producer): Running time: 2.01 | |
| PASSED | |
| Running Concurrent(Consumer): Running time: 0.96 | |
| PASSED |
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <script src="http://code.jquery.com/jquery-latest.js"></script> | |
| </head> | |
| <body> | |
| <div id="images"> | |
| </div> | |
| <script> |
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| setlocal tabstop=4 | |
| setlocal softtabstop=4 | |
| setlocal shiftwidth=4 | |
| setlocal textwidth=80 | |
| setlocal smarttab | |
| setlocal expandtab |
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| #include <iostream> | |
| #include <iomanip> | |
| #include <sstream> | |
| using namespace std; | |
| int main() { | |
| std::string str = "2.492089450701739E62"; | |
| double d; |
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| if ( typeof(tests) != "object" ) | |
| tests = []; | |
| // generate a grid map from (x1, y1) to (x2, y2)` | |
| function generateGridMap(collection, x1, y1, x2, y2) { | |
| for( var i = x1; i < ( x2 + 1); i++) { | |
| for(var j = y1; j < (y2 + 1); j++) { | |
| collection.insert({loc: [i, j]}); | |
| } |
visualzhou
/ geohash.py
Created
October 23, 2014 22:19
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| import re | |
| import pprint | |
| import math | |
| foo = """ | |
| field #0['loc']: [BinData(128, 611325C000000000), BinData(128, 611325FFFFFFFFFF)], [BinData(128, 6113274000000000), BinData(128, 6113277FFFFFFFFF)], [BinData(128, 611327C000000000), BinData(128, 611327FFFFFFFFFF)], [BinData(128, 61132D0000000000), BinData(128, 61132DFFFFFFFFFF)], [BinData(128, 61132F0000000000), BinData(128, 61132FFFFFFFFFFF)], [BinData(128, 6113300000000000), BinData(128, 611333FFFFFFFFFF)], [BinData(128, 6113340000000000), BinData(128, 611334FFFFFFFFFF)], [BinData(128, 6113360000000000), BinData(128, 611336FFFFFFFFFF)], [BinData(128, 6113380000000000), BinData(128, 61133BFFFFFFFFFF)], [BinData(128, 61133C0000000000), BinData(128, 61133CFFFFFFFFFF)], [BinData(128, 61133E0000000000), BinData(128, 61133EFFFFFFFFFF)], [BinData(128, 6113854000000000), BinData(128, 6113857FFFFFFFFF)], [BinData(128, 611385C000000000), BinData(128, 611385FFFFFFFFFF)], [BinData(128, 6113900000000000), BinData(128, 611390FFFFFFFFFF)], [BinData(128, 6113910000000000), Bin |
visualzhou
/ cut-test.py
Created
April 28, 2018 00:55
Find the minimal reproduction test from a generated fuzzer test failure
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| from __future__ import print_function | |
| from sets import Set | |
| import sys | |
| import re | |
| import subprocess | |
| def get_allowed_cases(): | |
| allowed_cases = [] | |
| for arg in sys.argv[1:]: | |
| if "-" in arg: |
visualzhou
/ debugger_mongod_89735.dedup.log
Created
May 12, 2018 07:35
BF-9045 mongod stacktrace dedup
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| ['/Users/syzhou/10gen/support/scripts/parse_gdb_output_osx.py', 'debugger_mongod_89735.clean.log'] | |
| All threads: 60 | |
| Unique threads: 34 | |
| 1 times thread #13: tid = 0x268a1b3, 0x00007fffbd2c5bf2 libsystem_kernel.dylib`__psynch_cvwait + 10, name = 'WTCheckpointThread' | |
| frame #0: 0x00007fffbd2c5bf2 libsystem_kernel.dylib`__psynch_cvwait + 10 | |
| frame #1: 0x00007fffbd3b17fa libsystem_pthread.dylib`_pthread_cond_wait + 712 | |
| frame #2: 0x00007fffbbd33572 libc++.1.dylib`std::__1::condition_variable::__do_timed_wait(std::__1::unique_lock<std::__1::mutex>&, std::__1::chrono::time_point<std::__1::chrono::system_clock, std::__1::chrono::duration<long long, std::__1::ratio<1l, 1000000000l> > >) + 126 | |
| frame #3: 0x000000010f5d50e4 mongod`std::__1::cv_status std::__1::condition_variable::wait_for<long long, std::__1::ratio<1l, 1l> >(this=0x00007fd06a553200, __lk=0x000070000cfd1d78, __d=0x000070000cfd1b60) + 148 at __mutex_base:388 | |
| frame #4: 0x000000010f5d496d mongod`mongo::WiredTigerKVEngine::WiredTigerCheckpoi |
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| set print static-members off | |
| set print pretty on | |
| set pagination off | |
| python | |
| import os, sys, glob | |
| pp = glob.glob("/opt/mongodbtoolchain/v3/share/gcc-*/python/libstdcxx/v6/printers.py") | |
| printers = pp[0] | |
| path = os.path.dirname(os.path.dirname(os.path.dirname(printers))) | |
| sys.path.insert(0, path) |
visualzhou
/ generate.py
Created
July 24, 2020 22:07
Jinja2 template to generate genny workload YAML file
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| import jinja2 | |
| templateLoader = jinja2.FileSystemLoader(searchpath="./") | |
| templateEnv = jinja2.Environment(loader=templateLoader, extensions=["jinja2.ext.loopcontrols"]) | |
| TEMPLATE_FILE = "template.yml.j2" | |
| template = templateEnv.get_template(TEMPLATE_FILE) | |
| threads = [1, 16, 32, 64, 128, 256, 512, 768, 1024] | |
| s = template.render(threads = threads, total_phase = len(threads) * 8) |