building_data_management_systems.Xuanzhou.2024Fall.DaSE
/
leveldb_base
23
0
Çatalla 3
Kod Konular 0 Değişiklik İstekleri 0 Sürümler 0 Wiki Aktivite
提供基本的ttl测试用例
25'ten fazla konu seçemezsiniz Konular bir harf veya rakamla başlamalı, kısa çizgiler ('-') içerebilir ve en fazla 35 karakter uzunluğunda olabilir.
39 İşleme
2 Dallar
2.0 MiB
Ağaç: 60bd8015f2
Dallar Biçim İmleri
${ item.name }
${ searchTerm } dalı oluştur
'60bd8015f2'den
${ noResults }
leveldb_base/TODO

13 satır
494 B
Ham Normal Görünüm Geçmiş

Initial checkin. git-svn-id: https://leveldb.googlecode.com/svn/trunk@2 62dab493-f737-651d-591e-8d6aee1b9529
13 yıl önce
​
​
​
​
​
​
​
​
​
A number of smaller fixes and performance improvements: - Implemented Get() directly instead of building on top of a full merging iterator stack. This speeds up the "readrandom" benchmark by up to 15-30%. - Fixed an opensource compilation problem. Added --db=<name> flag to control where the database is placed. - Automatically compact a file when we have done enough overlapping seeks to that file. - Fixed a performance bug where we would read from at least one file in a level even if none of the files overlapped the key being read. - Makefile fix for Mac OSX installations that have XCode 4 without XCode 3. - Unified the two occurrences of binary search in a file-list into one routine. - Found and fixed a bug where we would unnecessarily search the last file when looking for a key larger than all data in the level. - A fix to avoid the need for trivial move compactions and therefore gets rid of two out of five syncs in "fillseq". - Removed the MANIFEST file write when switching to a new memtable/log-file for a 10-20% improvement on fill speed on ext4. - Adding a SNAPPY setting in the Makefile for folks who have Snappy installed. Snappy compresses values and speeds up writes. git-svn-id: https://leveldb.googlecode.com/svn/trunk@32 62dab493-f737-651d-591e-8d6aee1b9529
13 yıl önce
​
​
 
  1. ss
  2. - Stats
  3. 

  4. db
  5. - Maybe implement DB::BulkDeleteForRange(start_key, end_key)
  6.   that would blow away files whose ranges are entirely contained
  7.   within [start_key..end_key]?  For Chrome, deletion of obsolete
  8.   object stores, etc. can be done in the background anyway, so
  9.   probably not that important.
  10. 

  11. After a range is completely deleted, what gets rid of the
  12. corresponding files if we do no future changes to that range.  Make
  13. the conditions for triggering compactions fire in more situations?