屏幕驱动移植后，查看fps和irq异常，可以从哪排查问题?
screen 0:
de_rate 300000000 hz, ref_fps:60
mgr0: 720x1280 fmt[rgb] cs[0x204] range[full] eotf[0x4] bits[8bits] err[0] force_sync[0] unblank direct_show[false] iommu[1]
dmabuf: cache[0] cache max[0] umap skip[0] umap skip max[0]
lcd output backlight(150) fps:25.5 720x1280
err:0 skip:0 irq:0 vsync:0 vsync_skip:0
BUF enable ch[1] lyr[0] z[16] prem[N] a[pixel 255] fmt[ 0] fb[ 720,1280; 720,1280; 720,1280] crop[ 0, 0, 720,1280] frame[ 0, 0, 720,1280] addr[ 0, 0, 0] flags[0x 0] trd[0,0]