MELVYL SYSTEM Z39.50 SERVER STATISTICS
Time period: 06/01/02 through 06/30/02
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 428,600
Searchlight 74,092
Berkeley 1,691
Davis 3,029
Irvine 402
Los Angeles 1,467
Riverside 435
San Diego 850
San Francisco 665
Santa Barbara 897
Santa Cruz 417
NRLF 0
SRLF 0
LBL 222
LLL 199
Los Alamos 2
Other - UC 2,968
CSL 0
CSU 363
Stanford 753
Other - Non UC 197,406
_____
714,458
1.1.2 Active users
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Average number of active users in a 2 minute interval:
12-2 a.m. 80 12-2 p.m. 239
2-4 a.m. 46 2-4 p.m. 286
4-6 a.m. 35 4-6 p.m. 260
6-8 a.m. 61 6-8 p.m. 149
8-10 a.m. 152 8-10 p.m. 115
10-12 a.m. 255 10-12 p.m. 105
Total connect hours for MELVYL MEDLINE:
For UC users (hrs:mins) 0.00
For Non-UC users (hrs:mins) 0.00
1.1.3 FIND commands
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Number of FIND commands issued by location:
Location Total
________ _____
Melvyl Web 635,941
Searchlight 60,743
Berkeley 3,881
Davis 7,617
Irvine 818
Los Angeles 2,944
Riverside 998
San Diego 2,220
San Francisco 981
Santa Barbara 1,836
Santa Cruz 1,523
NRLF 0
SRLF 0
LBL 342
LLL 574
Los Alamos 0
Other - UC 5,379
CSL 0
CSU 692
Stanford 775
Other - Non UC 253,416
_____
980,680
Average number of FIND commands per hour:
12-2 a.m. 872 12-2 p.m. 1,693
2-4 a.m. 541 2-4 p.m. 1,968
4-6 a.m. 504 4-6 p.m. 1,674
6-8 a.m. 832 6-8 p.m. 1,039
8-10 a.m. 1,425 8-10 p.m. 830
10-12 a.m. 1,860 10-12 p.m. 831
Total number of FIND commands
Peak hourly load of 4,455 FIND commands occurred on 06/19/02 at 11 am
1.1.4 Records Displayed
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Number of Records Displayed by location:
Location Total
________ _____
Melvyl Web 16,495,442
Searchlight 145,832
Berkeley 171,329
Davis 104,507
Irvine 10,705
Los Angeles 40,177
Riverside 168,149
San Diego 24,688
San Francisco 10,545
Santa Barbara 24,728
Santa Cruz 11,211
NRLF 0
SRLF 0
LBL 5,218
LLL 7,130
Los Alamos 0
Other - UC 75,301
CSL 0
CSU 4,625
Stanford 4,566
Other - Non UC 1,609,546
_____
18,913,699
Average number of records displayed per hour:
12-2 a.m. 9,449 12-2 p.m. 32,467
2-4 a.m. 4,609 2-4 p.m. 39,827
4-6 a.m. 3,583 4-6 p.m. 33,024
6-8 a.m. 6,771 6-8 p.m. 18,265
8-10 a.m. 20,478 8-10 p.m. 15,975
10-12 a.m. 33,960 10-12 p.m. 13,243
Total number of Records Displayed
Peak hourly load of 83,157 records displayed occurred on 06/26/02 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 474,577 9,124,964 48.4%
TEN 0 0 0.0%
PE 211,954 2,771,533 21.6%
ABI 9,605 45,836 1.0%
BIOSIS 57,770 551,748 5.9%
CC 42,252 716,317 4.3%
IAC databases 59,340 1,491,779 6.1%
MAGS 48,997 1,399,286 5.0%
NEWS 6,275 72,457 0.6%
COMP 4,068 20,036 0.4%
INS databases 70,449 1,473,600 7.2%
INS 33,504 1,268,625 3.4%
INS90 10,637 84,304 1.1%
INS85 9,135 47,179 0.9%
INS80 8,472 29,320 0.9%
INS69 8,701 44,172 0.9%
MED databases 0 0 0.0%
MED 0 0 0.0%
MED90 0 0 0.0%
MED85 0 0 0.0%
MED80 0 0 0.0%
MED75 0 0 0.0%
MED66 0 0 0.0%
PSYC 43,399 307,919 4.4%.
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 0.7
Standard deviation in seconds 6.3
Present response time from receipt of present request
at CDL until transmission of present response:
Average in seconds 0.3
Standard deviation in seconds 2.6.
SSMmm/yy srv.sys MELVYL SYSTEM Z39.50 SERVER STATISTICS (monthly)