Date: Mon, 2 Jan 2017 23:08:10 +0300 From: "Marat N.Afanasyev" <amarat@li.ru> To: Gary Palmer <gpalmer@freebsd.org> Cc: FreeBSD stable <freebsd-stable@freebsd.org> Subject: Re: usb 3.0 thumb drive speed limit Message-ID: <586AB32A.6040801@li.ru> In-Reply-To: <20170102184104.GA95857@in-addr.com> References: <586A0F05.6050504@li.ru> <20170102184104.GA95857@in-addr.com>
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[-- Attachment #1 --] Gary Palmer wrote: > On Mon, Jan 02, 2017 at 11:27:49AM +0300, Marat N.Afanasyev wrote: >> I wonder is there a speed limit on usb 3.0? I've bought >> >> ugen0.4: <SanDisk> at usbus0 >> umass2 on uhub7 >> umass2: <SanDisk Extreme, class 0/0, rev 2.10/0.10, addr 4> on usbus0 >> da2 at umass-sim2 bus 2 scbus9 target 0 lun 0 >> da2: <SanDisk Extreme 0001> Removable Direct Access SPC-4 SCSI device >> da2: Serial Number AA010808161609220143 >> da2: 40.000MB/s transfers >> da2: 59840MB (122552320 512 byte sectors) >> da2: quirks=0x2<NO_6_BYTE> >> >> that claims 'Up to 245 MBytes/sec read speed' > > I don't think the speed reported by the SCSI layer (CAM) is correct > for USB, although it seems from an experiment here that if you > plug a USB3 drive into a USB2 port it reports "40.000MB/s transfers" > and on a USB3 port it reports "400.000MB/s transfers". SCSI doesn't > really have any direct mapping to the USB speeds so I suspect the > USB stack uses the closest value. The tests I did were with 10.3. > Other releases may behave differently. > > Check with usbconfig what the negotiated USB speed is (the "spd=" value > with the Mbps or Gbps value in brackets afterwards) > > FULL = USB1 > HIGH = USB2 > SUPER = USB3 > > Regards, > > Gary > _______________________________________________ > freebsd-stable@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-stable > To unsubscribe, send any mail to "freebsd-stable-unsubscribe@freebsd.org" > it seems that drive doesn't attach as usb 3.0 even when plugged into pci-e card port directly, to say nothing about the hub. probably it's buggy firmware of addon card, I'll try to find newer firmware and flash it, if one exists -- SY, Marat [-- Attachment #2 --] 0 *H 010 `He 0 *H 00͠U]?Bg0 *H 0u1 0 UIL10U StartCom Ltd.1)0'U StartCom Certification Authority1#0!UStartCom Class 1 Client CA0 160828143630Z 191128143630Z0410U amarat@li.ru10 *H amarat@li.ru0"0 *H 0 2 "ypw (j& K`֛Q]JW r ucf \? 2:,quԌ,gO3')Kߛfg _}#μt hY`<of'~hGT 0e^('Lg}~ukIY`َkǂ I^<*cNDktmB0^W ]A | 0O,gp 00U 0 U %0++0 U 0 0 U l0QltYk0 U #0$l9aIF+('Hmh0o+c0a0$+0http://ocsp.startssl.com09+0-http://aia.startssl.com/certs/sca.client1.crt08U 10/0-+)'http://crl.startssl.com/sca-client1.crl0U 0 amarat@li.ru0#U 0http://www.startssl.com/0GU @0>0< +70-0++ https://www.startssl.com/policy0 *H .FUB@:(e@eۋHԩgx<,ޢs4XOި;sE 1Y"@jhCtuf]Z`@x*O,F@ Kk= 00nC9 y >Rx_!V3_ 9e ӯ)-,gRmP~FQx%#EjUEᶔK'LoMO꽕 <bw PT"ӎR00ʠk} Q Y0 *H 0}1 0 UIL10U StartCom Ltd.1+0)U "Secure Digital Certificate Signing1)0'U StartCom Certification Authority0 151216010005Z 301216010005Z0u1 0 UIL10U StartCom Ltd.1)0'U StartCom Certification Authority1#0!UStartCom Class 1 Client CA0"0 *H 0 }â}[[_ u$Wy5 |̔ vnqY)\aL$dYG|B"QǤĩVD#'F k9O_]*ςz_kU.u3r #:C<ogT )K Xah8v[\KqdlO)3+u7J5";[vfL/"2ϩJ# 4ד[U TB,a˖a 7H< =q d0`0U 0 U %0++0U 0 02U +0)0'%#!http://crl.startssl.com/sfsca.crl0f+Z0X0$+0http://ocsp.startssl.com00+0$http://aia.startssl.com/certs/ca.crt0 U $l9aIF+('Hmh0 U #0N @[i04hCA0?U 80604U 0,0*+ http://www.startssl.com/policy0 *H [#'#4pnR ۡЗN⛭`]K"#H*߷Թψ;UA8 Ҟeg{ozmYE60A )wXRK6c^-Al^ k[':G=;oLv{$B5;8b,ZP4{o[-j m)[땭[4 s.c|ҴvYLJ<|ӯgu0jD2 @hl+:j\ze_ևa@HyMHINxpK?% 㤺RC:=?^&7m´) A2;E~V B1$EvcKj؝(OoپU`"$a;ҡj0$&<$ۊ+/xjzb,7}W*1ܺ tDv#8K %^P>/i?)yRuQg^z`~sP91000u1 0 UIL10U StartCom Ltd.1)0'U StartCom Certification Authority1#0!UStartCom Class 1 Client CAU]?Bg0 `He 0 *H 1 *H 0 *H 1 170102200810Z0/ *H 1" -lroZ DM&' "J١e0l *H 1_0]0 `He*0 `He0 *H 0*H 0 *H @0+0 *H (0 +7100u1 0 UIL10U StartCom Ltd.1)0'U StartCom Certification Authority1#0!UStartCom Class 1 Client CAU]?Bg0 *H 10u1 0 UIL10U StartCom Ltd.1)0'U StartCom Certification Authority1#0!UStartCom Class 1 Client CAU]?Bg0 *H K/ ?l~Q?JH(Vu~2Z_Z6,Ae}4xYف f黍&hdQHO YYt<eNAX*mv' HThߟ7'Wo} X SidAj'<ZO\ wX9uk 3`[d.|4KV,N $aή^SxiWbL 5iiߑ4lO KB+/
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