What does Tapas mean in this shloka ?

यत्करोषि यदश्नासि यज्जुहोषि ददासि यत्।
यत्तपस्यसि कौन्तेय तत्कुरुष्व मदर्पणम्।।9.27।।

yatkarōṣi yadaśnāsi yajjuhōṣi dadāsi yat.

yattapasyasi kauntēya tatkuruṣva madarpaṇam..9.27..

Dedicating "Tapas" to Shri Krishna is generally translated as your "Tapasya" being offered but Easwaran translates this as "your Sins" i.e offer everything to me good or bad; good deeds or even your sins !! .

Sloka 5-18

विद्याविनयसंपन्ने ब्राह्मणे गवि हस्तिनि।

शुनि चैव श्वपाके च पण्डिताः समदर्शिनः।।5.18।।

vidyāvinayasaṅpannē brāhmaṇē gavi hastini.

śuni caiva śvapākē ca paṇḍitāḥ samadarśinaḥ..5.18..

The stress is on equanimity- समदर्शिनः
Brahmins have been qualified- only those with  विद्याविनयसंपन्ने .
Pandits are mentioned seperately.
  श्वपाके- is eater of dog's meat.
many commentaries mention- chandaal,outcaste etc