From 7555401fb3d88d7fc7a74fbb364da0f229f16205 Mon Sep 17 00:00:00 2001 From: Bryan Brattlof Date: Wed, 9 Jul 2025 08:18:21 -0500 Subject: [PATCH 1/5] perf(linux): AM62AX: Update PREEMPT_RT perf numbers for 11.1 Update the real time Linux latency numbers for SDK 11.1 Signed-off-by: Bryan Brattlof --- .../linux/RT_Linux_Performance_Guide.rst | 6 +++--- .../rt-cpu-method-all-latency-histogram.png | Bin 6627 -> 6998 bytes 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/source/devices/AM62AX/linux/RT_Linux_Performance_Guide.rst b/source/devices/AM62AX/linux/RT_Linux_Performance_Guide.rst index 7c65ee6bf..963bb0741 100644 --- a/source/devices/AM62AX/linux/RT_Linux_Performance_Guide.rst +++ b/source/devices/AM62AX/linux/RT_Linux_Performance_Guide.rst @@ -57,14 +57,14 @@ Test commands used for running stress-ng and cyclictest together stress-ng --cpu-method=all -c 4 & cyclictest -m -Sp80 -D6h -h400 -i200 -M -q -The latencies where observed with this SDK are summarized below: +The latencies observed with the default yocto SDK are summarized below: .. csv-table:: :header: "Latencies","CPU 0","CPU 1","CPU 2","CPU 3" "Minimum (us)","5","5","5","5" - "Average (us)","5","6","6","5" - "Maximum (us)","68","31","34","28" + "Average (us)","6","6","6","6" + "Maximum (us)","45","30","39","64" .. image:: img/rt-cpu-method-all-latency-histogram.png diff --git a/source/devices/AM62AX/linux/img/rt-cpu-method-all-latency-histogram.png b/source/devices/AM62AX/linux/img/rt-cpu-method-all-latency-histogram.png index e2f0c31c0614005668602d16eb217bb0ca632369..737137438dd55edeb4919228d745b0459dbdc3a1 100644 GIT binary patch delta 6675 zcmZvAcQ{;K*M8=hVe}z-iP1}h5u!vedWqf>ZIpzB$Y>M&j1q)Iv>-YW5-mi3NQ@vv zkSIYAy`<^A#dkb;f7ko_uIrnB=FC2Ouf6tK_rCA7W=?uowi1Ma?5(;Qs^b8=8 zG3k>4#Ymg0=H4&x9r6X(a?Wwe-giESFurQ!uDH6Dk@%}(!Tg?RUBDpA^@Bs!!N7-@ zCTGDhds5fBp7%Z9^pf%GPvb(~a<#MoBC(=-=?unr$I!F3dY)fKxfYhaMZ0=AgRA3~ z5nGeC+1IFq?T$9SWqML9smvJo{r11aU3|MfMReKr=60*>$#jrD_$r9XbBpm+xH@Pv 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ze#dDz2qWCi#-9bRy$U}AV)Dy4J%a+f_>?*v!sjUDA}v&{V))TF$6omt#%3mTGg4AIZBy+P7U}7hJ3D0KN|v*3WC*hKzQAS~(&y>T7e?dit;jSRuze(WJ+q2Jd+%>dLZOWI0vJK)Z(8=ClewozQZh z=OTxANz`vf$|a`Pg#<_U$u`UAem*ZX_3+AJJmP=Z^WV4PoP&_*Rxl|~dgupX$MV|3 zPt`tg>%}Z`W6?!d0ZFvXSK)yG4Fi{)WXCbr?r`8s>Ns#br8>Qw@2*=`-@$f7MujNO!n^9FeviHCz(tVgeIm4KIYnQo5lDT z5HMf%L#oV=>m_hWJ(cbIvB7wHE<^dpr}586HgDI$h2&f95*I~I!ONe5B-f;gQLuH= zrkMT~9dLx+)$`LTqc3P?hR^%LtI0ZNIWCi~xz5p(xfpq~Tz?UpzA!)5?q2K@`#6Q@ zpx2<>N5cND@-+DxUTJN7f23^g)7-DpV1t$J)R+p92)ff(LV*zB5Ce+asI^+Me%So( zPiC8p<-C+cy+)({5333lCismlA=NtKCuFlvHn1wCQi~a_+{(QwSlj2xO$FR>jD<0l z4Vl*jV=wQ&ks;e~NI$jiEuEJBxap?q%eyF(b>H-Xyq}Cnk=>I`i+|<<8q)mRn1rSy zCe3^tCo6fXjIQ~(j|K(VZRq%9jQaEYhh-} z#HlxP=0gdKETx)SW)q&L!dff%j&pMV;igp{)9YxLM|!S&_2DVn2451c*=Pu7a{T5w aD7mNpUf4-{dP?{)%|O;NyjV$ci25Jc=M)G4 From 648f5c795705d9df8a01447d0ff99fcf86bf645f Mon Sep 17 00:00:00 2001 From: Bryan Brattlof Date: Wed, 9 Jul 2025 08:20:39 -0500 Subject: [PATCH 2/5] perf(linux): AM62LX: Update PREEMPT_RT perf numbers for 11.1 Update the real-time Linux latency numbers for SDK 11.1 Signed-off-by: Bryan Brattlof --- .../linux/RT_Linux_Performance_Guide.rst | 6 +++--- .../rt-cpu-method-all-latency-histogram.png | Bin 6754 -> 6819 bytes 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/source/devices/AM62LX/linux/RT_Linux_Performance_Guide.rst b/source/devices/AM62LX/linux/RT_Linux_Performance_Guide.rst index 9f47d9972..28deb1dcc 100644 --- a/source/devices/AM62LX/linux/RT_Linux_Performance_Guide.rst +++ b/source/devices/AM62LX/linux/RT_Linux_Performance_Guide.rst @@ -56,13 +56,13 @@ Test commands used for running stress-ng and cyclictest together stress-ng --cpu-method=all -c 4 & cyclictest -m -Sp80 -D6h -h400 -i200 -M -q -The latencies observed with this SDK are summarized below: +The latencies observed with the default yocto SDK are summarized below: .. csv-table:: :header: "Latencies","CPU 0","CPU 1" "Minimum (us)","5","5" - "Average (us)","6","8" - "Maximum (us)","47","53" + "Average (us)","7","7" + "Maximum (us)","61","60" .. image:: img/rt-cpu-method-all-latency-histogram.png diff --git a/source/devices/AM62LX/linux/img/rt-cpu-method-all-latency-histogram.png b/source/devices/AM62LX/linux/img/rt-cpu-method-all-latency-histogram.png index f1e689e0a0ce9a472fb55d8ed31b65304387a180..154c7ad45b794e214a41aec4ac2e2e1e8e0ea123 100644 GIT binary patch delta 6500 zcmZ`-c|4Ts+dt1^h8fG4>@pb35M?RS*fMqrA*9HXPEuh=**#+~$zCW*mKI8iEDh)nc#%H<3G$rM)3)-< z_?gKTR*+w+ulX}es~f{wQMqqg4opa7*Xy8bREL85q%3kri934V-~aLdd>$mmzU%k@ z!(E~xfOlw4JhFHH!S>0ag>BzvA^`c@Fw=S!<-XaN@5**<$@1^{x2Er;I1QYHuDGrX zx@M$Q|414+x3YF>HdSGsv!CJ_=LQhY@_QX0o=!FWI(9Vo!ul20_Y~hq1;jjeX?LZ` zMXlY>`b)bjsg%*K_T=xFnc(r;lWiZEHx=@1yQ2q#a!*+0Sp3L4kbn>ItRM4!_0-t}`W#s&H!x>!*+sqSb=}@8nMC@<%5U+>(Oi?c0Sfb&bCJd22N%>Y^0tsS%}I_|W{y2ud3N$W@8t_5%E4#oLxq-7N2O%9q45P)`xDXyw)3#ZoG6Uu#x{_d4%XMUFjDJromGmI!bkS6oUPB z!pHUusJ8h-d#%pC1I!4=`ZfMwKr0jb@Vi}i3xQMJ!%!o4LT1BN5-(9Y#O>s2p-8+()KhZt#Kv;j 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zAH%yBMlPkx1iKB%-!Sdn?$I*P>ZnCqFqe?XC#!akm<{?ETh6CPh>edZ!3IWRq%xmW z-SO9-+43xzK=o|5F8okw_`~$Jc)Z(Kq}x7umVDi`)6nS&w_|V4(URW0;rJJ1IZv2M zdQEBRiEG=>(i28@J-c{g<&gR+6To_P2REDjPwUvIqw;JLv>ka8SeR64c{eE|={QmOO&0pFx zOWB)ESnfl2LH)mHct$8I{q?MFs;Y5w)Lx1U9IY_I$eE9lPRg)$tn5llt_ep1!~Y zlw#K)u0<%tA_uCz=S!aUz2k2(Bf2VaBw`UX>D}r%MV@xGOIW_=rE;x4LH`0*@B6}p zz$sJxciUfn%=)d$3;l;4`ZuZ^-x?*qi2E^~O2?1hL3-ol8FR>bs5OJ0{e$gQnuXb{^udOgJ-8q1#R-SLH!5?LVtwggcMq zMqUzmk5=)xjwU69Tw!(FqqPSqox?q8(Mha-#i$73{=dC7ySOeUmtLv{Lp0LXf?y_UdGN5-llu;mlf4KQhD; zr4~w0tF|4P-lF1mK^C7-!;jk;0eD;$-}KYC zlauV$<3(wWGUG)xF>LWJ0nUszSy*j=M$5@$HuhZ#NNSX z!ud0or0!ngd?B%-k9mntuI@hYi})(Z?@Ps(^4O#-m3_Q=Z0xf6-g!N-L%F|yXbPOV pce=??Ta)Yz{VPKd!ZXfsk7M)4)4VGzApvxJpV2eH7wR|={|60HbgBRV From 14f2566e2a0378cf7ec06847a05b4065b2e418a8 Mon Sep 17 00:00:00 2001 From: Bryan Brattlof Date: Wed, 9 Jul 2025 08:28:24 -0500 Subject: [PATCH 3/5] perf(linux): AM62PX: Update PREEMPT_RT perf numbers for 11.1 Update the real-time Linux latency numbers for SDK 11.1 Signed-off-by: Bryan Brattlof --- .../linux/RT_Linux_Performance_Guide.rst | 6 +++--- .../rt-cpu-method-all-latency-histogram.png | Bin 6580 -> 7098 bytes 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/source/devices/AM62PX/linux/RT_Linux_Performance_Guide.rst b/source/devices/AM62PX/linux/RT_Linux_Performance_Guide.rst index 780c34920..f99457699 100644 --- a/source/devices/AM62PX/linux/RT_Linux_Performance_Guide.rst +++ b/source/devices/AM62PX/linux/RT_Linux_Performance_Guide.rst @@ -57,13 +57,13 @@ Test commands used for running stress-ng and cyclictest together stress-ng --cpu-method=all -c 4 & cyclictest -m -Sp80 -D6h -h400 -i200 -M -q -The latencies observed with this SDK are summarized below: +The latencies observed with the default yocto SDK are summarized below: .. csv-table:: :header: "Latencies","CPU 0","CPU 1","CPU 2","CPU 3" "Minimum (usec)","5","5","5","5" - "Average (usec)","6","6","5","6" - "Maximum (usec)","30","33","31","35" + "Average (usec)","6","6","6","6" + "Maximum (usec)","34","74","35","39" .. image:: img/rt-cpu-method-all-latency-histogram.png diff --git a/source/devices/AM62PX/linux/img/rt-cpu-method-all-latency-histogram.png b/source/devices/AM62PX/linux/img/rt-cpu-method-all-latency-histogram.png index 6433c5b37da1f9cc3d5a17a9a09208fa08c3ad40..4a66bc9d3a595565f956ede474262fa4ec3f4fe2 100644 GIT binary patch delta 6757 zcmZX2c{r4B)PFMuGq%QF8O)F^`w|KnW8XCul4UF?p`n*!*!3HgvtbmrwEelU-tPxVq#0*D!7Xf0bjV&YuteP4ux{ z!DdHl>U@LinQH^_(zVf#SX0-sLG`DrWURzBN!l;TTqZ^dx3+aDU#ue~+ddvx+#lY- z<2maKSVD+nb>o4b=p1f*M82rnXM4WLyZUDKrCq91y~#`KEDbI*wq*LnrU!qd2FG%P zSmgqN5LRb+$2MIt@QSzN+tr@z#0wTY)?*ia`czsfI^Aato^+=iJbUnvIy1XWi1(XM zDQqamMSo?PEGdN5)7o*2uO39RngME!^^0lXGeY~!&SNC;)1R4a+tWUfxb@1B%!*Ha zV+|PfSYx<}m?%CB^!`b)jtAz2JX zmCAN`FnFHi@TEL%D0UHBjSdR&pfe@zNG5+UrGz<7o4>GJ5{iWfdwF)x8qJ2z+HBB0 zG>0^5Fi8XAXt#W}g!9O}TeU{>0nO{rw&g1Lj;+=dwO#ffd%T%*J568?F7+~@e9M?! z#%K3x;eI+$wXe5R>akf#oA9I}fmMl9eQ)wjCsMR>f@*;OO<&E06^UF~3Y@P5b~k(r 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the real-time Linux latency numbers for SDK 11.1 Signed-off-by: Bryan Brattlof --- .../linux/RT_Linux_Performance_Guide.rst | 7 ++++--- .../rt-cpu-method-all-latency-histogram.png | Bin 7115 -> 7232 bytes 2 files changed, 4 insertions(+), 3 deletions(-) diff --git a/source/devices/AM62X/linux/RT_Linux_Performance_Guide.rst b/source/devices/AM62X/linux/RT_Linux_Performance_Guide.rst index 35de6053f..76af3ad13 100644 --- a/source/devices/AM62X/linux/RT_Linux_Performance_Guide.rst +++ b/source/devices/AM62X/linux/RT_Linux_Performance_Guide.rst @@ -61,13 +61,14 @@ Test commands used for running stress-ng and cyclictest together stress-ng --cpu-method=all -c 4 & cyclictest -m -Sp80 -D6h -h400 -i200 -M -q -The latencies observed with this SDK are summarized below: +The latencies observed with the default yocto SDK image on +https://www.ti.com/tool/SK-AM62B-P1 are summarized below: .. csv-table:: :header: "Latencies","CPU 0","CPU 1","CPU 2","CPU 3" "Minimum (usec)","5","5","4","4" - "Average (usec)","7","5","6","6" - "Maximum (usec)","66","41","73","70" + "Average (usec)","6","5","6","6" + "Maximum (usec)","75","77","62","73" .. image:: img/rt-cpu-method-all-latency-histogram.png diff --git a/source/devices/AM62X/linux/img/rt-cpu-method-all-latency-histogram.png b/source/devices/AM62X/linux/img/rt-cpu-method-all-latency-histogram.png index a36483b588062d4dcdcd118393f6e6c788c57be9..85831c4afa8beaad158624a6a14f10fcaa0747d8 100644 GIT binary patch delta 6891 zcmY*-c|4Tu7kBq;#xRWR`&bHvv1Dx3j5Yh3y%?e%S+Zq`++$xVDOxN^BFbK9WSc?A zS`vyf_Og^vS)%vW^Stlx^UfdhnK}14*L9t9zUO<+b@!;#HL9q9QmL`N&dKoH<$Ey? zN)PcFY+ihAxxkdm$k{zCpo7#uB9e)(8u|Uo^eW7F*g&7DgvzJ}_`yuQpnlUkz)&pD zLSTScmPq2Po8~vEnfUy|1@y-C5d3Fsg;!2#8EB%RY;y3?o!FkoiaEdPCG*!OG8z=B zFMO&Zg$sCunz6~&Z>e?u5ZzH)G`9G;gnmlZJMY2VT-j{wdB^!!yq(!J(5i*C)wA5$ z==nPM-t#(c{0Pg4`YfpQ2=0i?$hk^=FizbExz8>P5wbwb9#1X&DQ|!y=pDD zqWVh5a6_K${;o_7bs=g0+;R~r*Eyk8+d^1oeE8w}c4GJH@^0PW;HRsLiXNYYp1cW# zp?=|`<}i@`u0Strsb3i$3drtJC_e$^gD;qcGz`|U=Re0OW7(8@YwPe 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f8839d91d78b1bcb670416695a6434bccfa5e036 Mon Sep 17 00:00:00 2001 From: Bryan Brattlof Date: Wed, 9 Jul 2025 08:43:39 -0500 Subject: [PATCH 5/5] perf(linux): AM64X: Update PREEMPT_RT perf numbers for 11.1 Update the real-time Linux latency numbers for SDK 11.1 Signed-off-by: Bryan Brattlof --- .../linux/RT_Linux_Performance_Guide.rst | 4 ++-- .../rt-cpu-method-all-latency-histogram.png | Bin 6578 -> 7030 bytes 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/source/devices/AM64X/linux/RT_Linux_Performance_Guide.rst b/source/devices/AM64X/linux/RT_Linux_Performance_Guide.rst index ccd6cd7a7..0f37d9b29 100644 --- a/source/devices/AM64X/linux/RT_Linux_Performance_Guide.rst +++ b/source/devices/AM64X/linux/RT_Linux_Performance_Guide.rst @@ -64,8 +64,8 @@ The latencies observed with this DK are summarized below: :header: "Latencies","CPU 0","CPU 1" "Minimum (usec)","6","6" - "Average (usec)","8","8" - "Maximum (usec)","77","105" + "Average (usec)","10","8" + "Maximum (usec)","85","64" .. image:: img/rt-cpu-method-all-latency-histogram.png diff --git a/source/devices/AM64X/linux/img/rt-cpu-method-all-latency-histogram.png b/source/devices/AM64X/linux/img/rt-cpu-method-all-latency-histogram.png index 54a41d8d5ba7567a5c358d08d29e40d334c81c3a..979594403a1808a4639352a9c0ea824899e8d66e 100644 GIT binary patch delta 6713 zcmZu#c_38p*Ppc+>x^9*4B5$$Y$0O{WtZ%XRFY)KPVQK;6jBsPD70A`Df=>%vgV6I zNk%nUlASP?_s+L|@9+KNoxkp!=eg%O%jbN~dG2$yH4SP66xcgyZftNOJnz>%w%oGE zyjOmOPzxHk*&|-=N;e|TVEZL)ZccA`hMm3LiFL@|#|f)cg8ctKqMnp@Sv6Ookd))I zwkY>v><`ywS>Br`pUTq2^Zi6}pby)t>&nEX)tbAm%)@S$Mlvj78byHe6TcUw+#_Uv zj1oM}Fe32*T?4Qzi?QAh%%DN(VZzs}--$YPH<96vYKRf-3w~jD>Thhe3yCaW;XijQ z`f%jTkNM7$uukb6xshO0Z?;|8jN~{W@ZQFFbWACtjpv>#gs9HjC5j^YbI#S2&FvmZ; zLBpx``+Xh}nmAIo5k)gjk-m}K)lS)6mv4R=b@tYr1a^MWhMh{@1MleHc8@3}O0>&gSEQ?oh>Ide=O4*QxQ$3Q{_iFAdmDg4FHAUb}WR_-ssl@G)`r3~{@Ng01f^ zl$nB|dWwSCpvkHFZ@{CN&&qdX22=5dn29La`UB0PTNGeoc zta(ANP;0|<;ef`y=()sgY7{)w40|W>OZ1*$Le%bf!wX#Ez@wE>pJCI{=j)zg^!|eD 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