[Nexus 7 (2013) Original Android Development] bleuxeon:
I am afraid I face the same issue, but

with

the test kernel :( :

Time since boot : 3h18

Screen on : 3min

Deep Sleep : 4min

Kernel wakelock "suspend_backoff" : 2h47 :eek:

Nothing realy exotic in my config :

#############################

#Glitch kernel Configuration

#For settings to take effect, you must execute /etc/init.d/01glitch-settings as root. If you don't know how to do that, just reboot.

##### Sweep2Wake Settings #####
# 0 to disable sweep2wake
# 1 to enable sweep2wake and sweep2sleep (default)
# 2 to enable sweep2sleep and disable sweep2wake

SWEEP2WAKE=0

##### S2W/DT2W power button toggle Settings #####
# 0 to disable S2W/DT2W power button toggle
# 1 to enable S2W/DT2W power button toggle

PWR_TOGGLE=0

##### Shortsweep Settings #####
# 0 to disable Shortsweep
# 1 to enable Shortsweep

SHORTSWEEP=0

##### DoubleTap2Wake Settings #####
# 0 to disable DoubleTap2Wake
# 1 to enable DoubleTap2Wake

DT2WAKE=1

##### S2S orientation Settings #####
# 0 for both
# 1 for portrait only
# 2 for landscape only

S2S_ORIENTATION=0

##### Magnetic on/off Settings #####
# 0 to disable Magnetic on/off
# 1 to enable Magnetic on/off

LID=1

##### USB OTG+Charge Settings ######
# 1 to enable USB host mode charging
# 0 to disable USB host mode charging

OTGCM=0

##### Input-booster Settings ######
# 1 to enable Input-boost
# 0 to disable Input-boost

INPUTBOOST=0

##### Gentle Fair Sleepers Settings ######
# 1 to enable
# 0 to disable

GFSLEEPERS=1

##### Force fast-charge Settings #####
# 0 to disable fast-charge
# 1 to enable fast-charge

FAST_CHARGE=0

##### MC Power savings Settings #####
# 0 to disable MC power savings
# 1 to enable maximum MC power savings

MC_POWERSAVE=0

##### Thermal Settings #####
# 0 for default thermal throttling
# 1 to run cool
# 2 to run hot

THERM=0

##### Max GPU Clock #####
# 1 320 MHz
# 2 400 MHz
# 3 450 MHz
# 4 504 MHz
# 5 545 MHz
# 6 600 MHz
# 7 627 MHz

GPU_OC=2

##### GPU Governor #####
# 1 Ondemand (default)
# 2 Interactive
# 3 Performance

GPU_GOV=1

##### GPU Undervolting #####
# 1 Stock
# 2 -25mV
# 3 -50mV
# 4 -75mV
# 5 -100mV
# 6 -125mV
# 7 -150mV

GPU_UV=1

##### CPU governor #####
# 1 ondemand (stock)
# 2 interactive
# 3 intellidemand
# 4 smartmax

CPU_GOV=1

##### I/O scheduler #####
# 1 cfq (stock)
# 2 row
# 3 deadline
# 4 fiops
# 5 sio# 6 noop

IOSCHED=1

##### Read-ahead buffer size (KB) #####
# 1 128 (stock)
# 2 256
# 3 512
# 4 1024
# 5 2048

READAHEAD=1

##### Max screen off frequency ######
# 0 disabled
# 1 594MHz
# 2 702MHz
# 3 810MHz
# 4 1026MHz
#5 1242MHz

SCROFF=0

##### Battery life eXtender #####
# 1 4.3V (stock - 100%)
# 2 4.2V (balanced - 93%)
# 3 4.1V (conservative - 83%)
# 4 4.0V (very conservative - 73%)

BLE=2

####################################################################
# Anything past this is a backup of your initialization settings #
# for Aroma Installer to restore them if asked. #
# Edit these lines only if you're planning to reinstall the kernel #
# and restore settings, as they won't be applied outside of Aroma. #
####################################################################

##### Maximum CPU0 frequency (MHz) #####
# 1512, 1620, 1728, 1836, 1890, 1944, 1998
# 2052, 2106, 2160, 2214, 2268, 2322

MAXF_CPU0=1512

##### Maximum CPU1 frequency (MHz) #####
# 1512, 1620, 1728, 1836, 1890, 1944, 1998
# 2052, 2106, 2160, 2214, 2268, 2322

MAXF_CPU1=1512

##### Maximum CPU2 frequency (MHz) #####
# 1512, 1620, 1728, 1836, 1890, 1944, 1998
# 2052, 2106, 2160, 2214, 2268, 2322

MAXF_CPU2=1512

##### Maximum CPU3 frequency (MHz) #####
# 1512, 1620, 1728, 1836, 1890, 1944, 1998
# 2052, 2106, 2160, 2214, 2268, 2322

MAXF_CPU3=1512

##### Minimum CPU frequency (MHz) #####
# 81, 162, 270, 384, 595 or 810 are valid frequencies.

MINF=270

##### Level of uV to apply to min frequency #####
# 0 stock(no uV)
# 1 -50 mV
# 2 -75 mV
# 3 -100 mV
# 4 -125 mV
# 5 -150 mV
# 6 -175 mV

UV_LEVEL=0

##### L2/cache OC settings #####
# 0 stock(1.13GHz-4.26GBps)
# 1 improved(1.19GHz-4.26GBps)
# 2 balanced(1.22GHz-4.66GBps)
# 3 fast(1.35GHz-4.66GBps)
# 4 extreme(1.43GHz-4.80GBps)
# 5 glitchy(1.49GHz-4.96GBps)

L2_OC=0

##### Hotplug driver Settings #####
# 0 to enable qualcomm mpdecision (stock)
# 1 to enable msm_mpdecision (recommended)
# 2 to enable intelli-plug

HOTPLUGDRV=1

##############################

EDIT : I will factory reset, reinstall Paranoid and Glitch in order to start clean.