Date: Sun, 24 May 2015 13:30:21 -0400 From: Robert Simmons <rsimmons0@gmail.com> To: freebsd-security@freebsd.org Subject: Re: Atom C2758 - loading aesni(4) reduces performance Message-ID: <CA%2BQLa9DMK5xqyAhWx%2Bu0L10jx4-kk0o4uarezdLMsLuffEbeJQ@mail.gmail.com> In-Reply-To: <6BA42026-C785-40B5-B9CF-DD4280693C41@dragondata.com> References: <6BA42026-C785-40B5-B9CF-DD4280693C41@dragondata.com>
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Can you provide the output of freebsd-version, and openssl version? It looks like you're using a very old version of OpenSSL. Here's my output as an example: % freebsd-version 10.1-RELEASE-p10 % openssl version OpenSSL 1.0.1l-freebsd 15 Jan 2015 % /usr/local/bin/openssl version OpenSSL 1.0.2a 19 Mar 2015 On Sun, May 24, 2015 at 12:22 PM, Kevin Day <toasty@dragondata.com> wrote: > > I=E2=80=99ve got an Atom C2758 system: > > CPU: Intel(R) Atom(TM) CPU C2758 @ 2.40GHz (2400.06-MHz K8-class CPU) > Origin =3D "GenuineIntel" Id =3D 0x406d8 Family =3D 0x6 Model =3D 0x= 4d Stepping =3D 8 > Features=3D0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,= PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE> > Features2=3D0x43d8e3bf<SSE3,PCLMULQDQ,DTES64,MON,DS_CPL,VMX,EST,TM2,SSS= E3,CX16,xTPR,PDCM,SSE4.1,SSE4.2,MOVBE,POPCNT,TSCDLT,AESNI,RDRAND> > AMD Features=3D0x28100800<SYSCALL,NX,RDTSCP,LM> > AMD Features2=3D0x101<LAHF,Prefetch> > Standard Extended Features=3D0x2282<TSCADJ,SMEP,ENHMOVSB> > > Enabling aesni seems to make performance much worse: > > root@router:~ # openssl speed -evp aes-256-cbc -elapsed > You have chosen to measure elapsed time instead of user CPU time. > Doing aes-256-cbc for 3s on 16 size blocks: 33200486 aes-256-cbc's in 3.0= 1s > Doing aes-256-cbc for 3s on 64 size blocks: 11444626 aes-256-cbc's in 3.0= 1s > Doing aes-256-cbc for 3s on 256 size blocks: 3328753 aes-256-cbc's in 3.0= 2s > Doing aes-256-cbc for 3s on 1024 size blocks: 866523 aes-256-cbc's in 3.0= 2s > Doing aes-256-cbc for 3s on 8192 size blocks: 108891 aes-256-cbc's in 3.0= 0s > OpenSSL 1.0.1e-freebsd 11 Feb 2013 > built on: date not available > options:bn(64,64) rc4(16x,int) des(idx,cisc,16,int) aes(partial) idea(int= ) blowfish(idx) > compiler: cc > The 'numbers' are in 1000s of bytes per second processed. > type 16 bytes 64 bytes 256 bytes 1024 bytes 8192 b= ytes > aes-256-cbc 176609.34k 243517.86k 281851.62k 293480.37k 29734= 5.02k > > > root@router:~ # kldload aesni > root@router:~ # openssl speed -evp aes-256-cbc -elapsed > You have chosen to measure elapsed time instead of user CPU time. > Doing aes-256-cbc for 3s on 16 size blocks: 881020 aes-256-cbc's in 3.02s > Doing aes-256-cbc for 3s on 64 size blocks: 842078 aes-256-cbc's in 3.00s > Doing aes-256-cbc for 3s on 256 size blocks: 700368 aes-256-cbc's in 3.03= s > Doing aes-256-cbc for 3s on 1024 size blocks: 425602 aes-256-cbc's in 3.0= 0s > Doing aes-256-cbc for 3s on 8192 size blocks: 76495 aes-256-cbc's in 3.00= s > OpenSSL 1.0.1e-freebsd 11 Feb 2013 > built on: date not available > options:bn(64,64) rc4(16x,int) des(idx,cisc,16,int) aes(partial) idea(int= ) blowfish(idx) > compiler: cc > The 'numbers' are in 1000s of bytes per second processed. > type 16 bytes 64 bytes 256 bytes 1024 bytes 8192 b= ytes > aes-256-cbc 4662.35k 17964.33k 59148.60k 145272.15k 20888= 2.35k > > > Is this expected here, or is something broken? > > =E2=80=94 Kevin > > _______________________________________________ > freebsd-security@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-security > To unsubscribe, send any mail to "freebsd-security-unsubscribe@freebsd.or= g"
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