February 26, 2018 
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February 26, 2018 [00:00:14] *** andy_js <andy_js!~andy@5ec0fdb3.skybroadband.com> has quit IRC (Quit: andy_js)[00:08:37] *** wiedi <wiedi!~wiedi@ip5b409739.dynamic.kabel-deutschland.de> has quit IRC (Ping timeout: 252 seconds)[00:50:55] *** m-i_ <m-i_!~m-i_@2a01cb0803d61900c83c16b916c2ee65.ipv6.abo.wanadoo.fr> has quit IRC (Remote host closed the connection)[00:51:45] *** m-i_ <m-i_!~m-i_@2a01cb0803d61900b52ed73fca6a741a.ipv6.abo.wanadoo.fr> has joined #openzfs[00:56:13] *** m-i_ <m-i_!~m-i_@2a01cb0803d61900b52ed73fca6a741a.ipv6.abo.wanadoo.fr> has quit IRC (Remote host closed the connection)[00:56:25] *** m-i_ <m-i_!~m-i_@2a01cb0803d61900b52ed73fca6a741a.ipv6.abo.wanadoo.fr> has joined #openzfs[00:59:18] *** wiedi <wiedi!~wiedi@ip5b409739.dynamic.kabel-deutschland.de> has joined #openzfs[03:46:22] *** chrkl_ <chrkl_!~chrkl@p57ADD9DB.dip0.t-ipconnect.de> has joined #openzfs[03:49:13] *** chrkl <chrkl!~chrkl@p4FD140FA.dip0.t-ipconnect.de> has quit IRC (Ping timeout: 240 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has quit IRC (Remote host closed the connection)[13:03:22] *** zfs <zfs!~zfs@unaffiliated/ptx0> has quit IRC (Remote host closed the connection)[13:07:05] *** eki <eki!~eki@dsl-hkibng41-567327-143.dhcp.inet.fi> has quit IRC (Quit: leaving)[13:09:52] *** eki <eki!~eki@dsl-hkibng41-567327-143.dhcp.inet.fi> has joined #openzfs[13:35:43] *** sergeyt <sergeyt!~sergeyt@2a02:6b8:0:40c:15a5:7176:cc15:8c3d> has joined #openzfs[13:46:44] *** jugo <jugo!~jugo@unaffiliated/jugo> has quit IRC (Read error: Connection reset by peer)[13:47:46] *** sergeyt <sergeyt!~sergeyt@2a02:6b8:0:40c:15a5:7176:cc15:8c3d> has quit IRC (Remote host closed the connection)[13:51:34] *** jugo <jugo!~jugo@unaffiliated/jugo> has joined #openzfs[14:07:12] *** sergeyt <sergeyt!~sergeyt@141.8.150.210-red.dhcp.yndx.net> has joined #openzfs[14:14:16] *** sergeyt <sergeyt!~sergeyt@141.8.150.210-red.dhcp.yndx.net> has quit IRC (Remote host closed the connection)[14:36:26] *** sergeyt <sergeyt!~sergeyt@2a02:6b8:0:40c:946d:2b9f:c54d:7698> has joined #openzfs[14:51:57] *** sergeyt <sergeyt!~sergeyt@2a02:6b8:0:40c:946d:2b9f:c54d:7698> has quit IRC (Remote host closed the connection)[15:02:07] *** avg_I <avg_I!~avg@freebsd/developer/avg> has quit IRC (Ping timeout: 248 seconds)[15:02:49] *** avg_I <avg_I!~avg@freebsd/developer/avg> has joined #openzfs[15:03:18] *** sergeyt <sergeyt!~sergeyt@2a02:6b8:0:40c:f564:b6c2:ab47:6973> has joined #openzfs[15:08:11] *** Yada <Yada!Yada@nat/redhat/x-gcpbdgxnseyflkrg> has joined #openzfs[15:09:13] *** Kurlon_ <Kurlon_!~Kurlon@98.13.72.207> has quit IRC (Ping timeout: 240 seconds)[15:17:23] *** disposable2 <disposable2!~Thunderbi@chello089173037107.chello.sk> has joined #openzfs[15:27:56] *** sergeyt <sergeyt!~sergeyt@2a02:6b8:0:40c:f564:b6c2:ab47:6973> has quit IRC (Read error: Connection timed out)[15:28:50] *** sergeyt <sergeyt!~sergeyt@2a02:6b8:0:40c:f564:b6c2:ab47:6973> has joined #openzfs[15:28:59] *** disposable2 <disposable2!~Thunderbi@chello089173037107.chello.sk> has quit IRC (Ping timeout: 256 seconds)[15:43:24] *** f_g <f_g!~f_g@212-186-127-178.static.upcbusiness.at> has quit IRC (Quit: f_g)[15:46:17] *** f_g <f_g!~f_g@212-186-127-178.static.upcbusiness.at> has joined #openzfs[15:47:48] *** Kurlon <Kurlon!~Kurlon@bidd-pub-03.gwi.net> has joined #openzfs[15:49:09] *** kanacht <kanacht!~invitado@37.223.97.93> has joined #openzfs[15:49:21] <kanacht> I think I am regrettnig setting lz4 system wide.[15:51:05] *** sergeyt <sergeyt!~sergeyt@2a02:6b8:0:40c:f564:b6c2:ab47:6973> has quit IRC (Read error: Connection timed out)[15:52:21] *** sergeyt <sergeyt!~sergeyt@2a02:6b8:0:40c:f564:b6c2:ab47:6973> has joined #openzfs[15:54:08] <kanacht> does lz4 introduce latency or slowdown?[15:54:13] <kanacht> I am suspecting.[15:54:23] <kanacht> *I am suspicious[15:55:21] <DHE> if you have super-fast disks (NVMe probably) it might be a net loss. but with spinning disks it's almost always a net win[15:56:05] *** Guest16356 <Guest16356!~chat@p54B2F157.dip0.t-ipconnect.de> has quit IRC (Ping timeout: 240 seconds)[15:56:51] <kanacht> cheap ass ssd[15:57:09] <kanacht> DHE: did you mean 'net gain'?[15:58:24] <cbreak> do you care about latency?[15:58:35] <cbreak> or throughput?[15:58:39] <kanacht> wow, so how to remove now lz4? I think I added to the root dataset :/[15:58:46] *** sergeyt <sergeyt!~sergeyt@2a02:6b8:0:40c:f564:b6c2:ab47:6973> has quit IRC (Remote host closed the connection)[15:58:48] <kanacht> I/O speed.[15:59:12] <cbreak> kanacht: that's a terribly underspecified requirement[15:59:22] <cbreak> lz4 is likely beneficial for throughput[15:59:36] <cbreak> it costs latency of course, but likely not in any measurable quantity[16:00:07] <kanacht> cbreak: are you positive?[16:00:44] <cbreak> depends on the viewpoint[16:01:18] *** sergeyt <sergeyt!~sergeyt@2a02:6b8:0:40c:f564:b6c2:ab47:6973> has joined #openzfs[16:02:17] <kanacht> cbreak: what about for a zvol?[16:03:18] <cbreak> first rule to performance tuning: benchmark.[16:03:38] <cbreak> what matters most is how you want to write and read the data.[16:04:11] *** m-i_ <m-i_!~m-i_@2a01cb0803d61900b52ed73fca6a741a.ipv6.abo.wanadoo.fr> has quit IRC (Remote host closed the connection)[16:06:58] <nahamu> +1000[16:07:01] <kanacht> in this case I need to process many files and want to use a partition like a sratch device.[16:07:50] <cbreak> kanacht: do you use zfs locally? via network? with your own program? or some off-the-shelf program?[16:07:58] *** chat <chat!~chat@p54B2F157.dip0.t-ipconnect.de> has joined #openzfs[16:07:59] <cbreak> does the program synchronize often? or let the caching do its work?[16:08:23] *** chat is now known as Guest83894[16:11:33] *** m-i_ <m-i_!~m-i_@2a01cb0803d61900153d030ede99c862.ipv6.abo.wanadoo.fr> has joined #openzfs[16:22:50] *** Eric_ is now known as Ericloewe[16:24:40] *** tozhu <tozhu!~Thunderbi@218.89.234.176> has joined #openzfs[16:54:23] *** Yada <Yada!Yada@nat/redhat/x-gcpbdgxnseyflkrg> has quit IRC (Quit: Yada)[17:02:11] *** sergeyt <sergeyt!~sergeyt@2a02:6b8:0:40c:f564:b6c2:ab47:6973> has quit IRC ()[17:03:21] *** Yada <Yada!Yada@nat/redhat/x-ezxbmatamzvkproj> has joined #openzfs[17:06:13] *** Yada <Yada!Yada@nat/redhat/x-ezxbmatamzvkproj> has quit IRC (Client Quit)[17:09:01] *** tozhu <tozhu!~Thunderbi@218.89.234.176> has quit IRC (Ping timeout: 265 seconds)[17:31:22] *** Yada <Yada!Yada@nat/redhat/x-ucyynjdfxiixoztc> has joined #openzfs[18:13:27] *** Yada <Yada!Yada@nat/redhat/x-ucyynjdfxiixoztc> has quit IRC (Quit: Yada)[18:26:27] *** Yada <Yada!Yada@nat/redhat/x-migupdvugdcdvxrx> has joined #openzfs[18:29:08] *** Yada <Yada!Yada@nat/redhat/x-migupdvugdcdvxrx> has quit IRC (Client Quit)[18:57:52] *** jugo <jugo!~jugo@unaffiliated/jugo> has quit IRC (Read error: Connection reset by peer)[19:00:03] *** elxa <elxa!~elxa@2a01:5c0:e17b:a601:3af3:7d31:eea8:7320> has joined #openzfs[19:01:49] *** jugo <jugo!~jugo@unaffiliated/jugo> has joined #openzfs[19:02:27] *** michaeldexter <michaeldexter!~michaelde@c-73-157-221-98.hsd1.or.comcast.net> has joined #openzfs[19:25:36] *** Guest83894 <Guest83894!~chat@p54B2F157.dip0.t-ipconnect.de> has quit IRC (Ping timeout: 248 seconds)[19:26:08] *** chat <chat!~chat@p54B2F157.dip0.t-ipconnect.de> has joined #openzfs[19:26:30] *** chat is now known as Guest60542[19:31:32] *** jnollette <jnollette!~jnollette@gateway/tor-sasl/jnollette> has quit IRC (Remote host closed the connection)[19:32:47] *** jnollette <jnollette!~jnollette@gateway/tor-sasl/jnollette> has joined #openzfs[19:47:44] *** michaeldexter <michaeldexter!~michaelde@c-73-157-221-98.hsd1.or.comcast.net> has quit IRC (Quit: michaeldexter)[20:49:46] *** michaeldexter <michaeldexter!~michaelde@c-73-157-221-98.hsd1.or.comcast.net> has joined #openzfs[21:07:06] *** beardface <beardface!~bearface@unaffiliated/bearface> has quit IRC (Remote host closed the connection)[21:52:47] *** efm <efm!~efm@vpn.tummy.com> has quit IRC (Ping timeout: 248 seconds)[21:55:26] *** tozhu <tozhu!~Thunderbi@218.89.234.176> has joined #openzfs[22:00:09] *** gila <gila!~gila@5ED4D9C8.cm-7-5d.dynamic.ziggo.nl> has quit IRC (Read error: Connection reset by peer)[22:02:19] *** tozhu <tozhu!~Thunderbi@218.89.234.176> has quit IRC (Ping timeout: 260 seconds)[22:10:34] *** elxa <elxa!~elxa@2a01:5c0:e17b:a601:3af3:7d31:eea8:7320> has quit IRC (Quit: Leaving)[22:17:13] *** elxa <elxa!~elxa@2a01:5c0:e17b:a601:3af3:7d31:eea8:7320> has joined #openzfs[22:38:39] *** elxa <elxa!~elxa@2a01:5c0:e17b:a601:3af3:7d31:eea8:7320> has quit IRC (Quit: Leaving)[22:57:49] *** Kurlon_ <Kurlon_!~Kurlon@bidd-pub-04.gwi.net> has joined #openzfs[23:01:04] *** Kurlon <Kurlon!~Kurlon@bidd-pub-03.gwi.net> has quit IRC (Ping timeout: 256 seconds)[23:02:09] *** Kurlon_ <Kurlon_!~Kurlon@bidd-pub-04.gwi.net> has quit IRC (Ping timeout: 252 seconds)[23:11:24] *** Botanic <Botanic!~Botanic@tita/admin/Botanic> has quit IRC (Read error: Connection reset by peer)[23:26:07] *** carlwgeorge <carlwgeorge!sid144208@gateway/web/irccloud.com/x-hjfquofzioumzwjo> has left #openzfs[23:30:57] *** Botanic <Botanic!~Botanic@tita/admin/Botanic> has joined #openzfs[23:34:52] *** Botanic <Botanic!~Botanic@tita/admin/Botanic> has quit IRC (Read error: Connection reset by peer)[23:36:29] *** efm <efm!~efm@vpn.tummy.com> has joined #openzfs[23:49:56] *** Kurlon <Kurlon!~Kurlon@98.13.72.207> has joined #openzfs