Messages in this thread | | | Date | Sun, 14 Apr 1996 19:23:16 -0400 (EDT) | From | Benjamin Lahaise <> | Subject | Slow TCP and everything |
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Here's a small patch that might help things. In my case, ftp's seem to stall when more than one packet is lost per window, even though we could perform fast recovery after we receive the first missing packet. This patch makes acks in fast recovery a bit more explicit - I don't like the time estimates in tcp_send_fast_recovery_ack - replace it if you please. ;)
The patch also corrects a few ntohs->htons's (DOH!), a potential problem in option parsing, and why weren't we throwing away duplicate packets? (Although thinking about it, it _might_ be redundant...)
-b
P.S: I've also encountered random keyboard lockups, but they're few and far between. Oh well... P.P.S: Also, acks do not seem to be delayed by much at all - we really need a better estimator.
Well, here it is: ----cut---- begin 664 fast_recovery.patch.gz M'XL(".]C<3$``V9A<W1?<F5C+G!A=&-H`+U8VW+;R!%]!K^B[50<DN`-I"A2 ME.6RUJ:SREZLDI3:5#9;*!`8BK,$`008D%94_O><N8`$>%'6+U')`M#3W3/3 M??I,CP,^GU,[3\GI##KC<9='?I@'K!LQT<UB?]E94,BC_,N1@5J[W3YM9MU[ M@JX3.!Z0,YP,SR?]"W(N+LYKMFV?]&G=YY&V.L/O9-"?#!UM]?X]M?M.OW5. MMGR,Z/W[&EEYE/''B`64+>)46-:&1T&\N<2(Z^:#/AW^A%XFH.5F[-^7\KO; M)+SF+/(91?EJQE+:+%A$&Z94*4\"3V`"L6"DO<NA>#Z'8K.+B=9QZ`D>,MJN M)8RC1R)/Q)?EB3&1YR])\!6+<R%M[1.VUAP3IS"W8"/?*65^O&;I4]GZ],QA MZJ^EXN5NYM^19LXR+$KO"AK:QWX`9T^"92Z&$<-NLQ:\``_A)T?1H>2GP*$& M*]@XGPQ'D[/SE[!AC$K0&$YZ`-1H!PUGJ*`A'QH:[(M@:43KF"-W?H)\1X&; M+6=UA#;W!4F\4;-%Q>?2G>78:[-Q><(6R:O:9LN3N@$+O2=VU*9%/!)%'N'` M/NI`9MTMLOY-4Z<L8Z)>143F!4':VH-)H(7&+^P7`1`M%BV@@@IQDL8BIJ9\ M;%7C1/`XRJB)EZTP8&N."FKB:7889^9%A'*Q!U"2B>7)^DQFU^51DHN.;W)_ M;*@,J&/C1S`UVL?4<;L*XPP=D$Z9<33A&%!14_ZC3S?_F-[+-\NZ94$:TUT, M!K$FUL<XGZ$>KS_\0+/\L69+C>]8]+NWXA']Z'WO\8Q-K,\J@)1X:<:CQQ9] MDA5Y5Y3XIKO*0\$3^`GC+$/1)I*3%/7(.5&U-?J3*0]ZJW?FQ]&</W86[W0Q MC'M8L.V,G9;3TT2)E<1SY%QXM/`RA;^`))-P0;X7D?"68+5(S2EHGGHK5IH7 M#[&`MG:4"2_$M(\=^O6>,?J;Y\>S#!NZ^_3!&?0'+;H7;,V`D(</M]V;6^)A MF&>`:=C_33GHUMI6M:PDG&V+SZE.^&B_`_(97S,74<U9)TG9FEY=4?V@5M\< M*#?HS1MZ==Q'^QTFP[8;F,MZJ=3T<EB8L8KF=HR^RAR`'A5$S@<M9PB0G(]: MSMA$FZP,(?,7]3CQXX`UM.Q9/RS?RY@,SN?;!W?Z^<<)XB'%5LI$GD9R;OR$ M+'H4"[JBGA$@QP+)9I='O/S\^78B3XL[-I_(/-#H8H!SS5=`&W0<3?9J$NVW MW2[<6(E(\65)<WG(Q4G&_\.NFA"C<+P9XD(;0,:C%<\43':^]I=D'@&;>\#P M=E]\7M=>WU[U&W*>:\59&8#QM*63,(X3@(KF,5*E#U=C7HK+H3MZ_@:'*HZ' MD2WM0WU_+?9W+(G6-HW5%/QT?S_1U2<1(<^B_JC7,H"P%+@E+`,&9F@HD96D M(,AE_?4U.#W(DY#[:#7`"T"IZ/PK>MW0<95S':L7K&\Y<_,(M2AE,R-<SE/& M]%&WG(%=[J93]VYZ_5%YVP63U#[-BB_.%&$,>H/=BM5J01@H#B]X@K-63Q$Y MP:YMJN/_6K5%`<F.QKR`C6[F:,C^`I`"GAGT/!-`'$V(%X';\-G1^QR@<Y2U M"IK:MI#&S:^_H/\#TP4QJH!GG=^V0]L7#4C\F*?<.18],RML%/)G/(U".>40 M*FDYZXFD?KE,D#/:T&KNC9?#U)L!Z1LR=X8_8?QHVQ43U0BX7U9<N)+M4YE` M>KCY:>K^<G?S,&TA7I%:'AK5%GW_SVZ_H5Q+^Z]_A"$E#A03OGBRX]0X>;07 M8R?/]D)A[S+1'T^&O1</]YUAI6G$Z5YN&@>J3O'70*$(J#X=%3_LA";*9?&V M62ZX1`I-\U[HH14T\7^CL1`6,Z3%22*7<C88R0H\&XR+Q5BDJA!4K::7Z+BB MA8BCL&Z6A`834E/6?LB\M-QX9ENL*!_F(+^B2,2+K*Z3&^*$</6(U#8$4E&7 M,YY65RLL<.(O&+"!#E(ATS2=FD7T*RA;"F;:4!F;0W2D6BQ[M"M+X<!%G*=H M*K%FME%^\M7JR16+CAZX+-14:.2^PKJD&"51<Q@[K$Z8`!K))N6"J3N@[$6< M/Q`>9:@C5-$_%9^MOEGC4P1EI_B4-\'29YX:7*E8C!4L1^.S5G^@@X'X_2\0 MV8BD[#<?0%XTSR-]]./=1[,&-!>7VHVGFG.TYEQP>=QX>U?,=J&EW$%3T:A8 MX%"13)K!$C9IO&FAQQ5:Y*7R$IJRD'OH?SO2$H?MMUYI:O8SHEN]"IN+4M$> MOBI5F&[CS(7X2@$M%:)[1K9DLV&OTL-MU0K6*\KT[5MR)/TU+WHZN4<.6L/8 M/TSO?G8_3K_[^U_I]=%K^83^'.;@[E;Y?K='"J4-[:>RP[XD'+0-K>*^;I?U M7T:!K9K2H[?V"C7JJ8[RL1DZ2<=F_)NO6EN[ZG_NC"=.^:JE6A#\-5>6VNYB M6]YI??\6*SQT!L_[5XHJN!I:KT#1_J@:K+!\XZ#Q/^GPX)IP"/03MMMKQ'\! (9^'=4(43``!T ` end
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