Date: Thu, 12 Mar 2015 23:26:41 -0400 From: Brett Wynkoop <freebsd-arm@wynn.com> To: Bernd Walter <ticso@cicely7.cicely.de> Cc: "freebsd-arm@freebsd.org" <freebsd-arm@freebsd.org> Subject: Re: BeagleBone slow inbound net I/O Message-ID: <20150312232641.4365263d@ivory.wynn.com> In-Reply-To: <20150312133433.GB28385@cicely7.cicely.de> References: <20150311165115.32327c5a@ivory.wynn.com> <20150312133433.GB28385@cicely7.cicely.de>
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Greeting-
It is confirmed, the net I/O is much slower than reading from the SD
card. Here is another run of tar - pipe - tar, but this time the
source is the sd card and the destination is still the USB zfs.
root@beaglebone:/usr/local/bin # zpool iostat 5
capacity operations bandwidth
pool alloc free read write read write
---------- ----- ----- ----- ----- ----- -----
bbexport 295M 14.1G 0 3 27.9K 26.9K
bbexport 297M 14.1G 0 10 25.5K 445K
bbexport 298M 14.1G 0 9 25.4K 346K
bbexport 300M 14.1G 0 9 51.0K 383K
bbexport 302M 14.1G 0 12 0 452K
bbexport 304M 14.1G 0 10 51.1K 452K
bbexport 305M 14.1G 0 10 0 319K
bbexport 306M 14.1G 0 8 51.2K 238K
bbexport 308M 14.1G 0 11 25.7K 415K
bbexport 311M 14.1G 0 14 25.4K 625K
bbexport 315M 14.1G 1 23 66.8K 934K
bbexport 317M 14.1G 0 11 25.5K 472K
bbexport 319M 14.1G 0 14 25.5K 615K
bbexport 321M 14.1G 0 8 39.0K 271K
bbexport 322M 14.1G 0 8 12.7K 340K
bbexport 325M 14.1G 0 11 12.8K 683K
bbexport 327M 14.1G 0 9 12.7K 502K
bbexport 330M 14.1G 0 11 25.4K 594K
bbexport 333M 14.0G 0 12 0 689K
bbexport 337M 14.0G 0 23 0 862K
bbexport 340M 14.0G 0 15 25.5K 796K
bbexport 342M 14.0G 0 8 0 316K
bbexport 342M 14.0G 0 6 12.7K 99.7K
bbexport 343M 14.0G 0 10 12.8K 261K
bbexport 346M 14.0G 0 12 38.2K 534K
bbexport 349M 14.0G 1 14 64.2K 688K
bbexport 349M 14.0G 0 0 0 19.1K
bbexport 351M 14.0G 0 11 12.6K 579K
bbexport 352M 14.0G 0 13 12.7K 784K
bbexport 358M 14.0G 0 15 25.4K 631K
bbexport 360M 14.0G 0 14 12.7K 584K
bbexport 363M 14.0G 0 13 0 634K
bbexport 366M 14.0G 0 13 12.8K 561K
bbexport 369M 14.0G 0 27 12.7K 1.26M
bbexport 375M 14.0G 0 17 0 601K
bbexport 377M 14.0G 0 12 0 551K
bbexport 380M 14.0G 0 11 12.0K 604K
bbexport 387M 14.0G 0 24 25.4K 1.40M
bbexport 390M 14.0G 0 10 0 572K
bbexport 395M 14.0G 0 19 0 1.08M
bbexport 400M 14.0G 0 21 0 1.08M
bbexport 405M 14.0G 0 20 0 1.07M
-Brett
--
wynkoop@wynn.com http://prd4.wynn.com/wynkoop/pgp-keys.txt
917-642-6925
929-272-0000
If cowardly and dishonorable men sometimes shoot unarmed men with army
pistols or guns, the evil must be prevented by the penitentiary and
gallows, and not by a general deprivation of a constitutional privilege.
-Honorable J. A. Williams, Circuit Judge -
Wilson v. State, 33 Ark. 557, 34 Am. Rep. 52 (1878).
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