https://kuutorvaja.eenet.ee/w/index.php?action=history&feed=atom&title=Flashcache 2026-06-04T00:46:17Z Selle lehekülje redigeerimiste ajalugu MediaWiki 1.43.6 https://kuutorvaja.eenet.ee/w/index.php?title=Flashcache&diff=30869&oldid=prev 2019-10-10T12:46:50Z

<p></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="et"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">←Vanem redaktsioon</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Redaktsioon: 10. oktoober 2019, kell 12:46</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l4">4. rida:</td> <td colspan="2" class="diff-lineno">4. rida:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>  # apt-get install gcc make git-core dkms build-essential linux-headers-`uname -r` -y</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>  # apt-get install gcc make git-core dkms build-essential linux-headers-`uname -r` -y</div></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;"></del></div></td><td colspan="2" class="diff-side-added"></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;">(pole sada prossa kindel kas gcc ja make on vajalikud, vaja testida)</del></div></td><td colspan="2" class="diff-side-added"></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;"></del></div></td><td colspan="2" class="diff-side-added"></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>  # git clone https://github.com/facebook/flashcache.git</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>  # git clone https://github.com/facebook/flashcache.git</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>  # cd flashcache</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>  # cd flashcache</div></td></tr> <tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l39">39. rida:</td> <td colspan="2" class="diff-lineno">36. rida:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>  block_size 8, md_block_size 8, cache_size 482344960</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>  block_size 8, md_block_size 8, cache_size 482344960</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>  Flashcache metadata will use 1265MB of your 24154MB main memory</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>  Flashcache metadata will use 1265MB of your 24154MB main memory</div></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;"></del></div></td><td colspan="2" class="diff-side-added"></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Võtmete selgitused</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Võtmete selgitused</div></td></tr> </table>

Jj https://kuutorvaja.eenet.ee/w/index.php?title=Flashcache&diff=30868&oldid=prev 2019-10-10T12:44:10Z

<p>Uus lehekülg: &#039;===Flashcache=== Flashcashe on tehnoloogia selleks, et cacheda kirjutamisi-lugemisi kasutades kiiret SSD ketast vahelaona. # apt-get install gcc make git-core dkms build-essen...&#039;</p> <p><b>Uus lehekülg</b></p><div>===Flashcache===<br /> <br /> Flashcashe on tehnoloogia selleks, et cacheda kirjutamisi-lugemisi kasutades kiiret SSD ketast vahelaona.<br /> <br /> # apt-get install gcc make git-core dkms build-essential linux-headers-`uname -r` -y<br /> <br /> (pole sada prossa kindel kas gcc ja make on vajalikud, vaja testida)<br /> <br /> # git clone https://github.com/facebook/flashcache.git<br /> # cd flashcache<br /> # make<br /> # make install<br /> <br /> Meil on serveris kaks ketast<br /> <br /> */dev/rbd1 (cehphis loodud võrguketas)<br /> */dev/sdb (lokaalne ssd)<br /> <br /> Laadime mooduli<br /> <br /> # modprobe flashcache<br /> <br /> Dmesg peaks raporteerima<br /> <br /> [1023454.971735] flashcache: flashcache-3.1.1 initialized<br /> <br /> Järgmisena on vaja flascache_create töövahendiga kombineerida kaks blokkseadet device mapperis. Pole vaja karta, midagi olemasoleva rbd ketta ja sela oleva infoga ei juhtu<br /> <br /> Haagime rbd ketta lahti<br /> <br /> # umount /home<br /> <br /> Süntaks on käsul järgnev<br /> <br /> *flashcache_create home_cached &lt;võtmed&gt; &lt;tekitatav ketas&gt; &lt;ssd&gt; &lt;aeglane ketas&gt;<br /> <br /> # &#039;&#039;&#039;flashcache_create -p back -s 230G -b 4k backup_cached /dev/sdb /dev/rbd0&#039;&#039;&#039;<br /> cachedev backup_cached, ssd_devname /dev/sdb, disk_devname /dev/rbd0 cache mode WRITE_BACK<br /> block_size 8, md_block_size 8, cache_size 482344960<br /> Flashcache metadata will use 1265MB of your 24154MB main memory<br /> <br /> <br /> Võtmete selgitused<br /> <br /> *-p: operate in writeback mode, which means that we cache both write and read requests<br /> *-s: set the size of the cache, it should be the same as the size of your partition<br /> *-b: set the block size to 4K<br /> *backup_cached: flashcache seadme nimetus<br /> <br /> haagime tekkinud seadme külge<br /> <br /> # mount /dev/mapper/backup_cached /mnt/<br /> <br /> Vaatame tulemust<br /> <br /> # df -h<br /> Filesystem Size Used Avail Use% Mounted on<br /> ...<br /> /dev/mapper/backup_cached 32T 65G 32T 1% /mnt<br /> <br /> Statistika vaatmiseks<br /> <br /> # dmsetup table<br /> backup_cached: 0 68719460352 flashcache conf:<br /> ssd dev (/dev/sdb), disk dev (/dev/rbd0p1) cache mode(WRITE_BACK)<br /> capacity(237542M), associativity(512), data block size(4K) metadata block size(4096b)<br /> disk assoc(0K)<br /> skip sequential thresh(0K)<br /> total blocks(60810752), cached blocks(60160782), cache percent(98)<br /> dirty blocks(46144348), dirty percent(75)<br /> nr_queued(0)<br /> Size Hist: 1024:5 4096:217130775 <br /> <br /> Selleks, et boodil võetaks süsteem külge tuleb flashcache kaustas käivitada käsk<br /> <br /> # make -f Makefile.dkms boot_conf<br /> <br /> Seadme laadimiseks<br /> <br /> # flashcache_load /dev/sdb1 backup_cached<br /> <br /> Seadme hävitamiseks<br /> <br /> # flashcache_destroy /dev/sdb1</div>

Jj