MELVYL SYSTEM Z39.50 SERVER STATISTICS
Time period: 08/01/01 through 08/31/01
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 2,743
Searchlight 42,458
Berkeley 2,226
Davis 4,184
Irvine 1,572
Los Angeles 4,535
Riverside 523
San Diego 2,333
San Francisco 2,766
Santa Barbara 2,104
Santa Cruz 524
NRLF 0
SRLF 0
LBL 305
LLL 125
Los Alamos 6
Other - UC 600,332
CSL 0
CSU 806
Stanford 1,030
Other - Non UC 282,208
_____
950,780
1.1.2 Active users
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Average number of active users in a 2 minute interval:
12-2 a.m. 63 12-2 p.m. 273
2-4 a.m. 29 2-4 p.m. 344
4-6 a.m. 23 4-6 p.m. 308
6-8 a.m. 49 6-8 p.m. 161
8-10 a.m. 152 8-10 p.m. 92
10-12 a.m. 292 10-12 p.m. 88
Total connect hours for MELVYL MEDLINE:
For UC users (hrs:mins) 15151.67
For Non-UC users (hrs:mins) 319.93
1.1.3 FIND commands
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Number of FIND commands issued by location:
Location Total
________ _____
Melvyl Web 368
Searchlight 42,406
Berkeley 4,304
Davis 8,354
Irvine 3,578
Los Angeles 11,199
Riverside 1,034
San Diego 4,673
San Francisco 6,926
Santa Barbara 2,985
Santa Cruz 1,733
NRLF 0
SRLF 0
LBL 882
LLL 385
Los Alamos 7
Other - UC 932,586
CSL 0
CSU 1,700
Stanford 1,400
Other - Non UC 336,091
_____
1,360,611
Average number of FIND commands per hour:
12-2 a.m. 1,341 12-2 p.m. 2,157
2-4 a.m. 637 2-4 p.m. 2,540
4-6 a.m. 560 4-6 p.m. 2,073
6-8 a.m. 782 6-8 p.m. 1,138
8-10 a.m. 1,435 8-10 p.m. 724
10-12 a.m. 2,385 10-12 p.m. 774
Total number of FIND commands
Peak hourly load of 5,936 FIND commands occurred on 08/02/01 at Midnight
1.1.4 Records Displayed
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Number of Records Displayed by location:
Location Total
________ _____
Melvyl Web 3,591
Searchlight 5
Berkeley 50,181
Davis 124,964
Irvine 86,694
Los Angeles 130,787
Riverside 16,592
San Diego 53,393
San Francisco 101,169
Santa Barbara 28,729
Santa Cruz 18,320
NRLF 0
SRLF 0
LBL 9,547
LLL 18,527
Los Alamos 151
Other - UC 27,585,404
CSL 0
CSU 15,720
Stanford 11,030
Other - Non UC 2,291,337
_____
30,546,141
Average number of records displayed per hour:
12-2 a.m. 11,670 12-2 p.m. 45,827
2-4 a.m. 6,253 2-4 p.m. 56,853
4-6 a.m. 5,045 4-6 p.m. 50,308
6-8 a.m. 8,866 6-8 p.m. 24,484
8-10 a.m. 26,508 8-10 p.m. 16,384
10-12 a.m. 48,432 10-12 p.m. 13,960
Total number of Records Displayed
Peak hourly load of 116,157 records displayed occurred on 08/24/01 at 3 pm
1.2 Relative Use of Databases
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Number of Number of % of System
Database FIND Commands Records Displayed Searches
________ _____________ _________________ ___________
CAT 575,311 9,228,047 42.3%
TEN 0 0 0.0%
PE 154,835 2,860,265 11.4%
ABI 14,073 86,500 1.0%
BIOSIS 48,331 322,033 3.6%
CC 52,596 966,663 3.9%
IAC databases 69,113 1,852,279 5.1%
MAGS 57,511 1,745,966 4.2%
NEWS 7,760 68,753 0.6%
COMP 3,842 37,560 0.3%
INS databases 84,875 1,807,223 6.2%
INS 39,454 1,529,593 2.9%
INS90 13,442 116,320 1.0%
INS85 11,199 58,122 0.8%
INS80 10,254 41,617 0.8%
INS69 10,526 61,571 0.8%
MED databases 297,442 10,281,251 21.9%
MED 176,698 9,149,241 13.0%
MED90 33,355 571,656 2.5%
MED85 24,991 255,369 1.8%
MED80 21,754 133,349 1.6%
MED75 20,126 80,311 1.5%
MED66 20,518 91,325 1.5%
PSYC 51,419 386,520 3.8%.
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 0.8
Standard deviation in seconds 4.8
Present response time from receipt of present request
at CDL until transmission of present response:
Average in seconds 0.3
Standard deviation in seconds 0.8.
SSMmm/yy srv.sys MELVYL SYSTEM Z39.50 SERVER STATISTICS (monthly)