MELVYL SYSTEM Z39.50 SERVER STATISTICS
Time period: 11/01/00 through 11/30/00
1.0 GENERAL STATISTICS (includes all databases)
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1.1 System load
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1.1.1 Total sessions:
______________________
Location Total
________ _____
Melvyl Web 874,051
Searchlight 257,753
Berkeley 2,043
Davis 3,477
Irvine 2,185
Los Angeles 2,272
Riverside 577
San Diego 2,527
San Francisco 2,460
Santa Barbara 651
Santa Cruz 364
NRLF 0
SRLF 0
LBL 345
LLL 97
Los Alamos 6
Other - UC 4,973
CSL 0
CSU 681
Stanford 982
Other - Non UC 189,619
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1,345,063
1.1.2 Active users
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Average number of active users in a 2 minute interval:
12-2 a.m. 101 12-2 p.m. 417
2-4 a.m. 35 2-4 p.m. 474
4-6 a.m. 25 4-6 p.m. 414
6-8 a.m. 50 6-8 p.m. 262
8-10 a.m. 175 8-10 p.m. 245
10-12 a.m. 357 10-12 p.m. 206
Total connect hours for MELVYL MEDLINE:
For UC users (hrs:mins) 15593.03
For Non-UC users (hrs:mins) 348.73
1.1.3 FIND commands
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Number of FIND commands issued by location:
Location Total
________ _____
Melvyl Web 1,381,955
Searchlight 196,618
Berkeley 4,815
Davis 7,430
Irvine 2,808
Los Angeles 5,001
Riverside 1,231
San Diego 5,238
San Francisco 5,829
Santa Barbara 1,632
Santa Cruz 883
NRLF 0
SRLF 0
LBL 620
LLL 194
Los Alamos 2
Other - UC 17,958
CSL 0
CSU 1,083
Stanford 1,411
Other - Non UC 217,483
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1,852,191
Average number of FIND commands per hour:
12-2 a.m. 1,095 12-2 p.m. 3,224
2-4 a.m. 421 2-4 p.m. 3,501
4-6 a.m. 423 4-6 p.m. 2,877
6-8 a.m. 686 6-8 p.m. 1,908
8-10 a.m. 1,639 8-10 p.m. 1,801
10-12 a.m. 2,797 10-12 p.m. 1,524
Total number of FIND commands
Peak hourly load of 5,368 FIND commands occurred on 11/15/00 at 2 pm
1.1.4 Records Displayed
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Number of Records Displayed by location:
Location Total
________ _____
Melvyl Web 45,768,381
Searchlight 373,854
Berkeley 146,022
Davis 109,547
Irvine 24,090
Los Angeles 63,303
Riverside 14,750
San Diego 54,045
San Francisco 70,185
Santa Barbara 25,004
Santa Cruz 17,083
NRLF 0
SRLF 0
LBL 10,082
LLL 7,011
Los Alamos 5
Other - UC 285,958
CSL 0
CSU 6,794
Stanford 12,803
Other - Non UC 2,059,336
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49,048,253
Average number of records displayed per hour:
12-2 a.m. 17,354 12-2 p.m. 75,396
2-4 a.m. 6,284 2-4 p.m. 84,057
4-6 a.m. 5,365 4-6 p.m. 69,042
6-8 a.m. 9,749 6-8 p.m. 42,502
8-10 a.m. 34,212 8-10 p.m. 41,514
10-12 a.m. 63,195 10-12 p.m. 33,543
Total number of Records Displayed
Peak hourly load of 129,016 records displayed occurred on 11/15/00 at 10 am
1.2 Relative Use of Databases
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Number of Number of % of System
Database FIND Commands Records Displayed Searches
________ _____________ _________________ ___________
CAT 668,443 15,929,168 36.1%
TEN 0 0 0.0%
PE 196,485 3,900,953 10.6%
ABI 29,931 192,240 1.6%
BIOSIS 69,280 493,912 3.7%
CC 68,788 1,336,661 3.7%
IAC databases 222,638 6,901,406 12.0%
MAGS 186,462 6,450,023 10.1%
NEWS 25,991 335,745 1.4%
COMP 10,185 115,638 0.5%
INS databases 104,313 1,994,907 5.6%
INS 44,963 1,660,587 2.4%
INS90 17,471 150,984 0.9%
INS85 14,641 76,257 0.8%
INS80 13,454 41,920 0.7%
INS69 13,784 65,159 0.7%
MED databases 367,060 11,845,375 19.8%
MED 201,989 10,499,270 10.9%
MED90 43,573 732,252 2.4%
MED85 33,584 278,755 1.8%
MED80 30,223 128,738 1.6%
MED75 28,703 95,905 1.5%
MED66 28,988 110,455 1.6%
PSYC 102,275 807,135 5.5%.
1.3 Response time
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Search response time from receipt of search request
at CDL until transmission of search response:
Average in seconds 1.1
Standard deviation in seconds 5.7
Present response time from receipt of present request
at CDL until transmission of present response:
Average in seconds 0.4
Standard deviation in seconds 1.5.
SSMmm/yy srv.sys MELVYL SYSTEM Z39.50 SERVER STATISTICS (monthly)