Website stats and analysis

简介在之前的文章中我们知道RocksDB每一次写入,都是先写WAL,然后写Memtable,这次我们就来分析下MemTable的实现. 在RocksDB中,每个ColumnFamily都有自己的Memtable,互不影响.而在RocksDB中Memtable有多种实现(SkipList/HashSkipList/HashLinkList/Vector),具体的区别可以看这里,我们这次主要来分析默认的实现skiplist(只有skiplist是可以并发插入的).

2.48 Rating by Usitestat

pagefault.info was registered 1 decade 3 years ago. It is a domain having .info extension. It is estimated worth of $ 8.95 and have a daily income of around $ 0.15. As no active threats were reported recently, pagefault.info is SAFE to browse.

Traffic Report

Daily Unique Visitors: Not Applicable
Daily Pageviews: Not Applicable

Estimated Valuation

Income Per Day: $ 0.15
Estimated Worth: $ 8.95

Search Engine Indexes

Google Indexed Pages: Not Applicable
Yahoo Indexed Pages: Not Applicable
Bing Indexed Pages: Not Applicable

Search Engine Backlinks

Google Backlinks: Not Applicable
Bing Backlinks: Not Applicable
Alexa BackLinks: Not Applicable

Safety Information

Google Safe Browsing: No Risk Issues
Siteadvisor Rating: Not Applicable
WOT Trustworthiness: Very Poor
WOT Privacy: Very Poor
WOT Child Safety: Very Poor

Website Ranks & Scores

Alexa Rank: Not Applicable
PageSpeed Score: 89 ON 100
Domain Authority: 49 ON 100
Bounce Rate: Not Applicable
Time On Site: Not Applicable

Web Server Information

Hosted IP Address:

185.199.110.153

Hosted Country:

United States US

Location Latitude:

40.0656

Location Longitude:

-79.8917

Traffic Classification

Total Traffic: Not Applicable
Direct Traffic: Not Applicable
Referral Traffic: Not Applicable
Search Traffic: Not Applicable
Social Traffic: Not Applicable
Mail Traffic: Not Applicable
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Search Engine Results For pagefault.info

16.2.3 Page Faults - YouTube

- https://www.youtube.com/watch?v=RrZ8-1w7iok

Jul 12, 2019 ... 16.2.3 Page Faults License: Creative Commons BY-NC-SA More information at https://ocw.mit.edu/terms More courses at https://ocw.mit.edu ...


How To Fix The 'Page Fault in Non-Paged Area' BSOD In Windows 10

- https://www.tomshardware.com/how-to/fix-page-fault-error-windows-10

Jul 31, 2021 ... The PAGE FAULT IN NONPAGED AREA stop code can have many causes, including driver, update or memory issues.


Measuring Hard Pagefaults - Resplendence Software

- https://www.resplendence.com/whysoslow_help_hardpagefaults

Sep 17, 2019 ... The number of hard pagefaults per second on your system is displayed in the status panel · Windows uses a concept of virtual memory which relies ...


Pagefault information does not have any information about resource ...

- https://forums.developer.nvidia.com/t/pagefault-information-does-not-have-any-information-about-resource-except-va-in-vulkan/225696

1 day ago ... Hello. I'm currently suffering from getting page-fault information in my engine crash dump. When I make page-fault crash manually in ...


Difference between minor page faults vs major page faults

- https://www.learnsteps.com/difference-between-minor-page-faults-vs-major-page-faults/

Dec 24, 2020 ... So lets have a look at major and minor page faults. ... volatile information on cpu is saved, frames on RAM are checked for the page but ...


Determine which applications cause major page faults - Red Hat ...

- https://access.redhat.com/articles/786093

May 7, 2014 ... A given virtual address may or may not be currently mapped to a physical address. The operating system may chose to defer mapping a virtual ...


Page protection faults (PageFault) - BMC Documentation

- https://docs.bmc.com/docs/PATROL4Solaris/10/page-protection-faults-pagefault-779821904.html

Jun 28, 2020 ... A page fault occurs when your system is attempting to execute a portion of a process that has been paged out of memory. Excessive page faults ...


Page Faults - Intel

- https://www.intel.com/content/www/us/en/develop/documentation/vtune-cookbook/top/tuning-recipes/page-faults.html

Jun 2, 2022 ... Product and Performance Information. 1. Performance varies by use, configuration and other factors. Learn more at www.Intel.com/PerformanceIndex ...


What is Performance Monitor telling me when my page faults ...

- https://superuser.com/questions/240578/what-is-performance-monitor-telling-me-when-my-page-faults-second-are-high

Feb 1, 2011 ... The information must either be retrieved from another location in memory or from the pagefile. Recall that while a sustained value may indicate ...


Excessive Page Faults Generated By Windows Applications May ...

- https://kb.vmware.com/s/article/1687

Jul 6, 2020 ... Page faults are generated when an application tries to use memory ... Provide complete information about the application and the steps to ...


pagefault | 但行好事莫問前程

- https://www.pagefault.info/

A disk-based data structure used during crash recovery, to correct data written by incomplete transactions. 阅读全文 · MTR(mini-transaction)设计与实现.


What Page Fault Really Means - Simplicable

- https://simplicable.com/en/page-fault

Dec 6, 2019 ... By definition, virtual memory isn't in memory all the time but is cached to a data storage device such as a disk. As such, page faults regularly ...


How to get minor and major page fault for individual or group of ...

- https://unix.stackexchange.com/questions/228289/how-to-get-minor-and-major-page-fault-for-individual-or-group-of-processes

Sep 8, 2015 ... val, pid, pagefault, number of processes, total number of pages faults(Majpr+Minor) 1 ... I would expect any profiler to provide this info.


Description of soft and hard page faults - Smallvoid.com

- http://smallvoid.com/article/windows-pagefault.html

Nov 17, 2015 ... Hard Page Fault - The application memory-page has been paged to disk, and now it has to be loaded ... More Info The Basics of Page Faults ...


Troubleshoot MongoDB Page Faults - Blue Medora Blog

- https://bluemedora.com/troubleshoot-mongodb-page-faults/

Mar 6, 2020 ... This blog will cover troubleshooting MongoDB Page Faults and finding their root cause within MongoDB's storage engine MMAPv1.


Page faults and high-performance storage - Qumulo

- https://qumulo.com/blog/page-faults-and-high-performance-storage/

Feb 14, 2019 ... See this Launchpad issue for more information about why the change was made. Coincidentally, we mmap 2 MiB at a time in our data cache, which is ...


Page Fault Handling | Virtual Memory in the IA-64 Linux Kernel

- https://www.informit.com/articles/article.aspx?p=29961&seqNum=5

Nov 8, 2002 ... A page fault occurs when a process accesses a virtual page for which there is ... respectively (this accounting info is stored in the task ...


Page Fault Support for Network Controllers - Course Websites

- https://courses.engr.illinois.edu/ece598ms/sp2018/papers/paper254.pdf

faults of NICs, denoted as network page faults (NPFs). The PCI-SIG recently standardized ... information as possible about the page fault, including the.


Page Fault Monitoring Software to See Process with Most Page Faults

- https://www.ilovefreesoftware.com/26/windows-10/page-fault-monitoring-software-to-see-process-with-most-page-faults.html

Mar 26, 2020 ... Desktop Info is a free system monitoring software that can be used for page fault monitoring as well. Just like other hardware and system ...


Interrupt 14—Page-Fault Exception (#PF) - XEM

- https://xem.github.io/minix86/manual/intel-x86-and-64-manual-vol3/o_fe12b1e2a880e0ce-226.html

execute-disable bit set (for information about the execute-disable bit, see Chapter 4, “Paging”). If the SMEP flag is set in CR4, a page fault will also be ...


CS 537 Notes, Section #18: Virtual Memory, Page Faults

- https://pages.cs.wisc.edu/~bart/537/lecturenotes/s18.html

Problem: how does the operating system get information from user memory? E.g. I/O buffers, parameter blocks. Note that the user passes the OS a virtual ...


Exceptions - OSDev Wiki

- https://wiki.osdev.org/Exceptions

Aug 6, 2022 ... This does not necessarily mean that the page fault was a ... However, exception information is available in the x87 status word register.

Page Resources Breakdown

Homepage Links Analysis

pagefault | 但行好事 莫問前程

Website Inpage Analysis

H1 Headings: 13 H2 Headings: 9
H3 Headings: Not Applicable H4 Headings: Not Applicable
H5 Headings: Not Applicable H6 Headings: Not Applicable
Total IFRAMEs: Not Applicable Total Images: Not Applicable
Google Adsense: Not Applicable Google Analytics: Not Applicable

Two Phrase Analysis

Words Occurrences Density Possible Spam
RocksDB · 12 5.31 % No
· RocksDB 12 5.31 % No
MySQL · 12 5.31 % No
阅读全文 MySQL 6 2.655 % No
· Memtable 2 0.885 % No
Memtable flush分析 2 0.885 % No
· MemTable的写入 2 0.885 % No
Level Compact 2 0.885 % No
· 数据的读取二 2 0.885 % No
InnoDB tablespace源码分析 2 0.885 % No
· 写入逻辑的实现 2 0.885 % No
· 数据的读取一 2 0.885 % No
· Level 2 0.885 % No
Compact 分析 2 0.885 % No
InnoDB中Redo log设计与实现一 2 0.885 % No
nginx server 2 0.885 % No
协议 路由 1 0.442 % No
路由 tcp 1 0.442 % No
google 协议 1 0.442 % No
源码阅读 nginx 1 0.442 % No

Four Phrase Analysis

Words Occurrences Density Possible Spam
MySQL · RocksDB · 12 5.31 % No
阅读全文 MySQL · RocksDB 6 2.655 % No
· Level Compact 分析 2 0.885 % No
RocksDB · Level Compact 2 0.885 % No
· RocksDB · Memtable 2 0.885 % No
RocksDB · Memtable flush分析 2 0.885 % No
· RocksDB · 写入逻辑的实现 2 0.885 % No
· RocksDB · MemTable的写入 2 0.885 % No
· RocksDB · Level 2 0.885 % No
· RocksDB · 数据的读取二 2 0.885 % No
· RocksDB · 数据的读取一 2 0.885 % No
sever rfs cache fs 1 0.442 % No
InnoDB sever rfs cache 1 0.442 % No
tcpip InnoDB sever rfs 1 0.442 % No
kenel tcpip InnoDB sever 1 0.442 % No
server keepalive pipeline tcp_cork 1 0.442 % No
web server keepalive pipeline 1 0.442 % No
congest server,mm web server 1 0.442 % No
server,mm web server keepalive 1 0.442 % No
cache fs congest server,mm 1 0.442 % No

Mobile Friendly Check


Mobile Friendly : Unknown
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HTTP Header Analysis

Http-Version: 1.1
Status-Code: 200
Status: 200 OK
Server: GitHub.com
Content-Type: text/html; charset=utf-8
Last-Modified: Fri, 21 Jun 2019 07:22:56 GMT
Access-Control-Allow-Origin: *
ETag: W/"5d0c85d0-44bc"
expires: Tue, 23 Aug 2022 14:12:34 GMT
Cache-Control: max-age=600
Content-Encoding: gzip
x-proxy-cache: MISS
X-GitHub-Request-Id: 971A:CAC7:27142C:28E255:6304DDF9
Content-Length: 4245
Accept-Ranges: bytes
Date: Tue, 23 Aug 2022 14:02:34 GMT
Via: 1.1 varnish
Age: 0
Connection: keep-alive
X-Served-By: cache-fra19138-FRA
X-Cache: MISS
X-Cache-Hits: 0
X-Timer: S1661263354.994782,VS0,VE100
Vary: Accept-Encoding
X-Fastly-Request-ID: 911528fb2543debece5c22aa2a96527b5679cbb9

Domain Information

Domain Registrar: Afilias Global Registry Services
Registration Date: 2010-08-09 1 decade 3 years 8 months ago

Domain Nameserver Information

Host IP Address Country
ns77.domaincontrol.com 97.74.108.49 United States United States
ns78.domaincontrol.com 173.201.76.49 United States United States

DNS Record Analysis

Host Type TTL Extra
pagefault.info A 595 IP: 34.102.136.180
pagefault.info A 595 IP: 185.199.111.153
pagefault.info A 595 IP: 185.199.108.153
pagefault.info A 595 IP: 185.199.109.153
pagefault.info A 595 IP: 185.199.110.153
pagefault.info NS 3600 Target: ns77.domaincontrol.com
pagefault.info NS 3600 Target: ns78.domaincontrol.com
pagefault.info SOA 86400 MNAME: ns77.domaincontrol.com
RNAME: dns.jomax.net
Serial: 2020070800
Refresh: 28800
Retry: 7200
Expire: 604800

Alexa Traffic Rank

Alexa Search Engine Traffic

Full WHOIS Lookup

Domain Name: pagefault.info
Registry Domain ID:
cc4a1cc9611345958bf476aae133baf0-DONUTS
Registrar WHOIS Server:
whois.godaddy.com/
Registrar URL:
http://www.godaddy.com/domains/search.aspx?ci=8990
Updated Date:
2022-08-15T15:36:58Z
Creation Date:
2010-08-09T02:22:28Z
Registry Expiry Date:
2024-08-09T02:22:28Z
Registrar: GoDaddy.com, LLC
Registrar
IANA ID: 146
Registrar Abuse Contact Email:
[email protected]
Registrar Abuse Contact Phone:
+1.4806242505
Domain Status: clientDeleteProhibited
https://icann.org/epp#clientDeleteProhibited
Domain Status:
clientRenewProhibited
https://icann.org/epp#clientRenewProhibited
Domain Status:
clientTransferProhibited
https://icann.org/epp#clientTransferProhibited
Domain Status:
clientUpdateProhibited
https://icann.org/epp#clientUpdateProhibited
Domain Status:
autoRenewPeriod https://icann.org/epp#autoRenewPeriod
Registry
Registrant ID: REDACTED FOR PRIVACY
Registrant Name: REDACTED FOR
PRIVACY
Registrant Organization: Domains By Proxy,
LLC
Registrant Street: REDACTED FOR PRIVACY
Registrant City:
REDACTED FOR PRIVACY
Registrant State/Province:
Arizona
Registrant Postal Code: REDACTED FOR
PRIVACY
Registrant Country: US
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PRIVACY
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Registrant
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Registrant Email: Please query the RDDS service of the
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Registry Admin ID: REDACTED FOR PRIVACY
Admin
Name: REDACTED FOR PRIVACY
Admin Organization: REDACTED FOR
PRIVACY
Admin Street: REDACTED FOR PRIVACY
Admin City:
REDACTED FOR PRIVACY
Admin State/Province: REDACTED FOR
PRIVACY
Admin Postal Code: REDACTED FOR PRIVACY
Admin Country:
REDACTED FOR PRIVACY
Admin Phone: REDACTED FOR PRIVACY
Admin
Phone Ext: REDACTED FOR PRIVACY
Admin Fax: REDACTED FOR
PRIVACY
Admin Fax Ext: REDACTED FOR PRIVACY
Admin Email:
Please query the RDDS service of the Registrar of Record identified in
this output for information on how to contact the Registrant, Admin,
or Tech contact of the queried domain name.
Registry Tech ID:
REDACTED FOR PRIVACY
Tech Name: REDACTED FOR PRIVACY
Tech
Organization: REDACTED FOR PRIVACY
Tech Street: REDACTED FOR
PRIVACY
Tech City: REDACTED FOR PRIVACY
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Tech Postal Code: REDACTED FOR
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Tech Phone:
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Tech
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PRIVACY
Tech Email: Please query the RDDS service of the Registrar
of Record identified in this output for information on how to contact
the Registrant, Admin, or Tech contact of the queried domain
name.
Name Server: ns77.domaincontrol.com
Name Server:
ns78.domaincontrol.com
DNSSEC: unsigned
URL of the ICANN Whois
Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last
update of WHOIS database: 2022-08-23T14:02:38Z

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