E2compr 0.4 User Manual – When does compression occur

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In old versions of e2compr, compression would only happen when the filein question had been closed by all processes.

However, compression now also happens whenever a cluster boundary isreached during writing.

Decompression occurs when needed, i.e. every time the kernel wants toread a compressed cluster from disk into memory. The cluster remainscompressed on the disk. The kernel does cache the file data that itreads from disk, just like any other file (see the `cached’ headingof the output of free).

(At the time of writing, this caching is suboptimal in that all filesare given equal weight, whether they’re compressed or uncompressed, andwhether they’re on a fast hard drive or on a slow floppy or CD-ROM. Iunderstand that things like weighted caching and even caching toswapspace are planned for the 2.3 kernel series.)

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[Bridge] traffic to/from bridge

Wayback MachineAbout this captureCOLLECTED BY Organization: Alexa Crawls Starting in 1996, Alexa Internet has been donating their crawl data to the Internet Archive. Flowing in every day, these data are added to the Wayback Machine after an embargo period. Collection: Alexa Crawls DE Crawl data donated by Alexa Internet. This data is currently not publicly accessible TIMESTAMPSloadingLennert Buytenhekbuytenh@gnu.org
Mon, 14 Feb 2000 15:48:33 +0100 (CET)Hello,To all people who have been seeing bridge reachability problems: pleasefollow the following instructions.1. Save the output of ‘brctl showbr br0’2. Save the output of ‘ifconfig -a’3. Save the output of ‘route’4. Save the output of ‘arp’5. Save the output of ‘tcpdump -i br0 -R -n -e -x’ while you ping the bridge from another machine.6. Save the output of ‘tcpdump -i eth0 -R -n -e -x’ while you ping the bridge from another machine.7. Wrap it all up and send it to the mailing list.I have honestly not a clue what is going on in these cases, but as it’sapparently not just a single isolated case, there _is_ something going on.Somewhere.Anyway, thanks in advance to everybody for their help.greetings,LennertOn Mon, 14 Feb 2000, Janne Liimatainen wrote:> Hello all.>> I too cannot seem to get traffic to and from the bridge working. The> bridge itself works fine and even the firewalling stuff works. (Nice!)> But no traffic seems to go out of the bridge machine itself nor from> outside to the bridge. It would be essential for me to get this working on> my bridge, a bit too much work if I need to go to the console every time a> rule needs to be changed etc…>> This is how i create the bridge:>> brctl addbr br0> brctl addif br0 eth0> brctl addif br0 eth1> ifconfig eth0 0.0.0.0> ifconfig eth1 0.0.0.0> ifconfig br0 the.ip.add.ress (netmask is 255.255.0.0)>> I can then ping my own ip fine, but that is all that works. No ipchains> involved. I tried it without the ipchains-patch and same result.> I then tried disabling all the kernel options i dont absolutely need, but> to no avail.>> Ideas?>> The machine is a P200 with redhat 6.1 and a couple of 3com 590’s.>>> –> Janne Liimatainen >>>>>> _______________________________________________> Bridge mailing list – Bridge@opensource.captech.com>http://opensource.captech.com/mailman/listinfo/bridge>

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Пока что вкусовые предпочтения сформированы на аккаунте не ахти как правдиво, но вот как проплачу аккаунт – так сразу :)Поделись постом с братишкамиКомментарии (7)Flashbackты теперь 100% додоpurpleО да!Coco_JambooМне http://prostopleer.com/ нравится.
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