T.R | Title | User | Personal Name | Date | Lines |
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172.1 | Tandem Already did It | DEBIT::BOOTH | Bang the Conundrum Slowly | Fri Aug 12 1988 20:12 | 10 |
| Whether or not we run TP1 as well as Debit/Credit, Tandem already
has. Their results are the proof you seek of the confusion of TP1.
The Tandem Debit/Credit result was 208 TPS, 90% 2-sec, on a 32
processor VLX. The TP1 result (Tandem said they emulated the Sybase
TP1) was 240 TPS, 90% 2-sec, on a 16 processor VLX. By my math,
that makes the TP1 results 2.3 times as high as Debit/Credit.
As far as proof of the "easiness" of TP1, that comparison may suffice.
---- Michael Booth
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172.2 | Two Wrongs Don't Make a Right | HPSVAX::KASTNER | Peter Kastner CSG 491-0364 | Fri Aug 12 1988 21:48 | 27 |
| There are no TP1 standards, therefore you cannot compare ANY of
the existing TP1 benchmarks among TP1 database vendors. So even
if
Digital published a TP1 benchmark, what would we compare it to?
.1 is correct. TP1 is less than half the difficulty of ET1 (eg
debit-credit). That's because debit-cerdit is an End-To-End
transaction that simulates the full terminal to database and return
process that 'real world' transdactions go through. TP1 measures
relational database throughput. The database vendors don't
supply/can't control the TP monitor and communications part of the
sales, so they ignore it by bastardizing ET1 into TP1.
Our marketing strategy around benchmarks is to drag the industry
out of the slime pit of uncomparable tests and into the spotlight
of open, standard tests. That's why we were the charter member
of the Debit Credit Council (set up to define and monitor the benchmark
and results reporting).
If we need 'very fast' benchmarks, we have our customers to turn
to as well as other internal tests. One phone company customer
is doing over 300 tps on a VAXcluster (which begs the question every
sales person should as, "just what kind of transaction are we talking
abou?"). We can do 3-digit tps rates with Rdb 3.0, but the benchmarks
get more and more lightweight (and less and less meaningfull to
most customers) as the tps rates go up. So that's why we are putting
our stake in the ground around debit-credit. For now.
|
172.3 | Do the Right Thing | BANZAI::BERENSON | VAX Rdb/VMS Veteran | Sat Aug 13 1988 02:07 | 10 |
| I want to second Peter's comments.
Over the 6 month period prior to announcement we waffled a LOT on how to
present performance. The database group was interested in publishing
what we call "batch DebitCredit", which is a TP1-like implementation of
the basic debit-credit implementation. The reason was obvious, the
absolute numbers are much higher (about 2:1) over the full DebitCredit
numbers. We also considered 90% 2 Second numbers ala Tandem. In the
end, we decided that our strict DebitCredit numbers were so good, why
bother sliding around in the mud that others had made.
|
172.4 | I agree... | IND::NG | Thomas K. Ng, NYFD, 334-2435 | Mon Aug 15 1988 18:15 | 13 |
| I agree with everything you (Mike, Peter, and Hal) said. I too
think TP1 is nothing more than a "dirty" number game that the DB
vendors play. However, we can do what Tandem did. Run them both
and publish debit/credit. Yeah, I also feel good about the ACMS/RDB
tps numbers, but I am in the New York Financial District where Oracle
is pushing their 40+ tps and Sybase is bragging about their N tps.
I guess all I am asking for is some more help from the benchmarking
group for selling RDB. Let me tell you, it is tough doing business
in New York and we need all the help we can get. Are there anybody
else in the field who feel the same way?
Thomas
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172.5 | A voice to support .0 and .4 | BRILLO::BIRCH | Peter Birch, DTN 842-3297 | Tue Nov 08 1988 12:34 | 25 |
| Re .-1
There's me. TPS figures are like MIPS these days, they don't mean
much. I agree with everything .1,.2,and .3 said, and I think we
should try and haul the business out of the mire. Until that's done
however, we've still got to win sales, or we won't be in a position
to haul anything out of anything. While ORACLE and TANDEM fix the
figures, then we should too. Not to oversell the product, but just
to be used in precisely the way .0 specifies -
"yes, we can do 4 thousand TPS on a MicroVAX II as well, but _that's
not what you should be looking at_"
If we can't say that, customers simply assume we've got something
to hide, and all our good intentions and good products get ignored.
It's a bit like nuclear weapons; we don't want them, and we don't
want to use them, but if we don't have them we're very vulnerable
to those that do and are prepared to use them (that's not an
invitation to a discussion on world politics, just an analogy to
illustrate the point).
That's the way I feel about it, anyway.
PDB
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