What do the PathPilot ini & hal parameters control?

I have gotten Pathpilot to move the xyza axis and to run my spindle. I now am trying to calibrate velocity and acceleration to find my (open loop stepper) machines' limits. I am having trouble determining which .hal or .ini parameters are involved.
I am hoping some one can tell me how to increase velocity and acceleration.

Thanks
bill a

tormach_1100_3.ini

>>[AXIS_0]
TYPE = LINEAR
HOME = 0.000

# 110 in/min
MAX_VELOCITY = 1.833
MAX_ACCELERATION = 15.0

# 20 % higher
STEPGEN_MAX_VEL = 2.2
STEPGEN_MAXACCEL = 18.0

# jog shuttle ring speed
MAX_JOG_VELOCITY_UPS = 1.8333
MIN_JOG_VELOCITY_UPS = 0.008333

# nanoseconds
DIRSETUP = 10000
DIRHOLD = 10000
STEPLEN = 8000
STEPSPACE = 5000

# PID tuning params
DEADBAND = 0
P = 0
I = 0
D = 0
FF0 = 0
FF1 = 1
FF2 = 0.00011
BIAS = 0
MAX_OUTPUT = 0
MAX_ERROR = 0.0005

SCALE = 10000.0
FERROR = 5.0
MIN_FERROR = 2.500
MIN_LIMIT = -0.000001
MAX_LIMIT = 18.000000
HOME_OFFSET = -0.010
HOME_SEARCH_VEL = -0.750
HOME_LATCH_VEL = 0.050
HOME_IGNORE_LIMITS = YES
HOME_SEQUENCE = 1

I have been playing around with the MAX_VELOCITY = 1.833, MAX_ACCELERATION = 15.0 and the STEPGEN_MAX_VEL = 2.2 STEPGEN_MAXACCEL = 18.0. I can't find a correlation between the Jogging keys or
the Feed code any these settings. Does anybody have any idea where I can find a description or a table that describes .ini parameters?

thanks
bill a

Bill,
Ini File docs for V 2.7 are here:
linuxcnc.org/docs/2.7/html/config/ini-config.html

Jogging speed is set in the [DISPLAY] section with

DEFAULT_LINEAR_VELOCITY

Thanks that will most certainly help

bill a.