Bug 1197095
| Summary: | document that speed measurement uses cpu user time and document -elapsed option | |||
|---|---|---|---|---|
| Product: | Red Hat Enterprise Linux 6 | Reporter: | Stanislav Zidek <szidek> | |
| Component: | openssl | Assignee: | Tomas Mraz <tmraz> | |
| Status: | CLOSED ERRATA | QA Contact: | Stanislav Zidek <szidek> | |
| Severity: | unspecified | Docs Contact: | ||
| Priority: | unspecified | |||
| Version: | 6.6 | CC: | secondary-arch-list, szidek, tmraz | |
| Target Milestone: | rc | Keywords: | Documentation | |
| Target Release: | --- | |||
| Hardware: | All | |||
| OS: | Linux | |||
| Whiteboard: | ||||
| Fixed In Version: | openssl-1.0.1e-46.el6 | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | ||
| Clone Of: | ||||
| : | 1312110 (view as bug list) | Environment: | ||
| Last Closed: | 2016-05-11 00:47:25 UTC | Type: | Bug | |
| Regression: | --- | Mount Type: | --- | |
| Documentation: | --- | CRM: | ||
| Verified Versions: | Category: | --- | ||
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | ||
| Cloudforms Team: | --- | Target Upstream Version: | ||
| Embargoed: | ||||
| Bug Depends On: | ||||
| Bug Blocks: | 1197099, 1312110 | |||
I think this is rather problem of openssl computing the speeds, not of the engine itself. Switching to openssl. Please open the question on the upstream mailing list (https://lists.sourceforge.net/lists/listinfo/opencryptoki-tech) if you think it is engine problem. There is actually already -elapsed option that implements this request however it is undocumented. Does it work for you? Thanks for info, I had no idea about that. Works as expected with '-elapsed'. Tomas, according to the summary of this bug you set, I would expect some explicit mention of the fact that CPU time is used by default. However, it is now only deducable from '-elapsed' option documentation ("Measure time in real time instead of CPU time.").
Didn't you also want to mention the CPU time being used by default somewhere in DESCRIPTION part of manpage?
I'd say the man page is so short that reading it all including the -elapsed option description to get the info should be OK. Also normally (apart from the hardware engines) the information that CPU time is used instead of real time is not that important. VERIFIED manually.
NEW: openssl-1.0.1e-46.el6
man page documents '-elapsed' option:
-elapsed
Measure time in real time instead of CPU time. It can be useful
when testing speed of hardware engines.
OLD: openssl-1.0.1e-42.el6_7.2
No mention of '-elapsed' option.
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://rhn.redhat.com/errata/RHBA-2016-0933.html |
Description of problem: When measuring algorithms' speed while using engine ibmca, results are wildly inaccurate, because number of operations is divided by the ammount of processor time used, which is very low for external engine. Version-Release number of selected component (if applicable): openssl-ibmca-1.2.0-4.el6.s390x openssl-1.0.1e-30.el6_6.5.s390x How reproducible: always Steps to Reproduce: 1. openssl speed -engine ibmca rsa512 Actual results: engine "ibmca" set. Doing 512 bit private rsa's for 10s: 4015 512 bit private RSA's in 0.02s Doing 512 bit public rsa's for 10s: 4336 512 bit public RSA's in 0.03s OpenSSL 1.0.1e-fips 11 Feb 2013 built on: Tue Jan 13 08:38:01 EST 2015 options:bn(64,64) md2(int) rc4(8x,char) des(idx,cisc,16,int) aes(partial) idea(int) blowfish(idx) compiler: gcc -fPIC -DOPENSSL_PIC -DZLIB -DOPENSSL_THREADS -D_REENTRANT -DDSO_DLFCN -DHAVE_DLFCN_H -DKRB5_MIT -m64 -DB_ENDIAN -DTERMIO -Wall -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m64 -march=z9-109 -mtune=z10 -Wa,--noexecstack -DPURIFY -DOPENSSL_BN_ASM_MONT -DOPENSSL_BN_ASM_GF2m -DSHA1_ASM -DSHA256_ASM -DSHA512_ASM -DAES_ASM -DAES_CTR_ASM -DAES_XTS_ASM -DGHASH_ASM sign verify sign/s verify/s rsa 512 bits 0.000005s 0.000007s 200750.0 144533.3 Expected results: (cca) ... sign verify sign/s verify/s rsa 512 bits 0.002490s 0.002306s 401.5 433.6