The following tunables are used in the HP SPECweb99_SSL submittals,
beginning in June, 2003.

===============================================================================

Zeus global parameter tunables:

The entry from HP's global.cfg file is listed, followed by the
description and the default value.

tuning!bind_any  no
    Boolean: have server sockets bind to IPADDR_ANY       yes 

tuning!sendfile no
    Boolean: enable sendfile (supported platforms only)   yes

tuning!cache_cooling_time     0
    Zeus imposed delay before caching recently modified 
    files starts (seconds)                                120

tuning!cache_files            356750
    Size of the web server file cache (number of files)   8011

tuning!cache_flush_interval   86400
    Time after which unaccessed files are flushed from
    the cache (seconds)                                   120

tuning!cache_large_file       1000000
    Minimum size of a "large" file (bytes)                1000000

tuning!cache_max_bytes        0
    Maximum size to reserve for cached files (bytes) 
    (0=nolimit)                                           33554432

tuning!cache_small_file       0
    Maximum size of a "small"file (bytes) (system 
    page size)                                            4096

tuning!cache_stat_expire      86400
    Time for which the response of a stat() call 
    is cached (seconds)                                   17

tuning!cbuff_size             65536
    Integer: Cbuff size                                   8192

tuning!keepalive_timeout      1200
    Time after which an inactive keepalive connections 
    will be closed (seconds)                              15

tuning!keepalive_max          -1
    Maximum permitted number of keepalive connections 
    (-1 means no limit)                                   256

tuning!listen_queue_size      8192
    Size of the TCP listen queue                          256

tuning!maxaccept              1024
    Maximum number of accept() calls per server socket 
    per poll()/select()                                   32

tuning!ssl_keepalive          yes                        
    Keepalive SSL connections
    (Used to default to "no")                            yes

tuning!ssl_sessioncache_size  256                       
    Size of SSL session cache                            5011

tuning!ssl_sessioncache_expiry 120                      
    Integer: number of seconds cahe date valid for       24*60*60 (24 hr)

tuning!ssl_diskcache          no                         
    Boolean: use 2nd level on-disk cache for
    storing SSL session information                      yes

tuning!softservers            no
    Decide which soft server a request should go to      yes

tuning!so_rbuff_size          0
    Size of the server socket buffer (so_rbuff_size) 
    (bytes)                                              <unset>

tuning!so_wbuff_size          1048576
    Size of the socket write buffer (bytes)              <unset>

tuning!timeout                600
    Timeout for client transfers (seconds)               120

tuning!unique_bind            yes
   Force each child process to bind to a unique IP 
   address, and not to each interface                    no

tuning!use_poll               no
   Boolean: use poll() instead of select()               yes
 
tuning!modules!cgi!cbuff_size 1048576
   Integer: cbuff size                                   8192 

tuning!modules!stats!enabled  no 
   Boolean: Enable the satistics module                  yes

tuning!modules!nsapi!enabled  no 
   Boolean: whether to enable the nsapi runner 
   (zeus.nsapi)                                          yes

tuning!modules!isapi!enabled  no 
   Boolean: whether to enable the isapi runner 
   (zeus.isapi)                                          yes

tuning!modules!security!enabled yes                      
   Boolean: Enable SSL                                   no

tuning!modules!cgi!enabled yes                      
   Boolean: Enable the CGI module                        no

tuning!modules!isapi!enabled  yes
   Boolean: Enable the ISPAI module                      no


===============================================================================

The networking tunables used are the following.  The file
modified is /etc/rc.config.d/nddconf.

tcp_xmit_hiwater_def:  Amount of unsent data that triggers write-side
                       flow control.

        minimum: 4096
        maximum: undefined
        default: 32768 (32K)

tcp_conn_request_max:  Maximum number of outstanding inbound connection
                       requests.

        minimum: 1
        maximum: undefined
        default: 20

socket_caching_tcp: controls socket caching for TCP sockets (512)
	

===============================================================================

File System Tunables:

largefiles is an option used when making the hfs file system. When this 
option is used, the maximum size for the files created on the file system 
is not limited to the 2 GB limit.

behind is an hfs mounting option, which enables asynchronous writes to disk.


Disk Array Tunables:

With dual controllers, HP VA7100 can be set to high performance mode.
In this mode, the array will not flush the disk map to the drives with
every write, instead, it will flush the disk map during array shutdown.
Because there are two controllers which are battery backed up and
have 512 KB of RAM, there will not be any data lose even if power
is lost for up to two days.