MELVYL SYSTEM Z39.50 SERVER STATISTICS
Time period: 02/01/00 through 02/29/00
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 773,471
Searchlight 97,734
Berkeley 2,621
Davis 3,167
Irvine 2,686
Los Angeles 2,082
Riverside 403
San Diego 12,547
San Francisco 2,566
Santa Barbara 431
Santa Cruz 330
NRLF 0
SRLF 0
LBL 353
LLL 171
Los Alamos 21
Other - UC 5,064
CSL 0
CSU 602
Stanford 1,669
Other - Non UC 135,426
_____
1,041,344
1.1.2 Active users
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Average number of active users in a 2 minute interval:
12-2 a.m. 95 12-2 p.m. 352
2-4 a.m. 36 2-4 p.m. 403
4-6 a.m. 26 4-6 p.m. 330
6-8 a.m. 54 6-8 p.m. 206
8-10 a.m. 176 8-10 p.m. 196
10-12 a.m. 335 10-12 p.m. 181
Total connect hours for MELVYL MEDLINE:
For UC users (hrs:mins) 14489.77
For Non-UC users (hrs:mins) 501.13
1.1.3 FIND commands
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Number of FIND commands issued by location:
Location Total
________ _____
Melvyl Web 1,471,261
Searchlight 24,081
Berkeley 7,223
Davis 6,066
Irvine 3,557
Los Angeles 5,486
Riverside 844
San Diego 14,895
San Francisco 5,452
Santa Barbara 1,008
Santa Cruz 883
NRLF 0
SRLF 0
LBL 714
LLL 350
Los Alamos 26
Other - UC 14,600
CSL 0
CSU 806
Stanford 2,553
Other - Non UC 150,765
_____
1,710,570
Average number of FIND commands per hour:
12-2 a.m. 925 12-2 p.m. 2,935
2-4 a.m. 465 2-4 p.m. 3,325
4-6 a.m. 348 4-6 p.m. 2,611
6-8 a.m. 686 6-8 p.m. 1,640
8-10 a.m. 1,660 8-10 p.m. 1,579
10-12 a.m. 2,832 10-12 p.m. 1,456
Total number of FIND commands
Peak hourly load of 5,447 FIND commands occurred on 02/02/00 at 10 am
1.1.4 Records Displayed
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Number of Records Displayed by location:
Location Total
________ _____
Melvyl Web 45,758,236
Searchlight 172,246
Berkeley 113,492
Davis 106,314
Irvine 32,259
Los Angeles 74,585
Riverside 22,052
San Diego 57,055
San Francisco 62,925
Santa Barbara 11,840
Santa Cruz 10,036
NRLF 0
SRLF 0
LBL 7,089
LLL 11,196
Los Alamos 332
Other - UC 235,037
CSL 0
CSU 5,598
Stanford 23,898
Other - Non UC 1,293,682
_____
47,997,872
Average number of records displayed per hour:
12-2 a.m. 17,061 12-2 p.m. 73,436
2-4 a.m. 6,658 2-4 p.m. 84,879
4-6 a.m. 4,493 4-6 p.m. 65,033
6-8 a.m. 10,175 6-8 p.m. 41,341
8-10 a.m. 36,652 8-10 p.m. 40,265
10-12 a.m. 68,134 10-12 p.m. 34,672
Total number of Records Displayed
Peak hourly load of 131,828 records displayed occurred on 02/02/00 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 642,992 15,759,652 37.6%
TEN 0 0 0.0%
PE 173,212 3,661,740 10.1%
ABI 24,691 155,345 1.4%
BIOSIS 54,650 406,293 3.2%
CC 69,395 1,432,481 4.1%
IAC databases 211,023 6,866,476 12.3%
MAGS 172,133 6,330,492 10.1%
NEWS 27,966 402,192 1.6%
COMP 10,924 133,792 0.6%
INS databases 80,699 2,187,350 4.7%
INS 44,150 1,818,607 2.6%
INS90 12,086 168,464 0.7%
INS85 8,944 79,648 0.5%
INS80 7,728 50,917 0.5%
INS69 7,791 69,714 0.5%
MED databases 355,361 12,004,956 20.8%
MED 198,607 10,474,042 11.6%
MED90 44,234 809,852 2.6%
MED85 32,103 310,298 1.9%
MED80 28,064 161,235 1.6%
MED75 25,842 108,106 1.5%
MED66 26,511 141,423 1.5%
PSYC 76,241 662,847 4.5%.
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 1.2
Standard deviation in seconds 7.1
Present response time from receipt of present request
at CDL until transmission of present response:
Average in seconds 0.5
Standard deviation in seconds 1.3.
SSMmm/yy srv.sys MELVYL SYSTEM Z39.50 SERVER STATISTICS (monthly)